Nauticam has been working on a wet wide angle lens for some time now, the first prototype was seen with the release of the new N50 port system for compact but nothing has come to market yet.
Last week I have received a pre-production version of the WWL-1 (Wet Wide-Angle Lens – 1) coming in a retail box.
Edward had advised that the lens is bigger than the competition and this is due to the construction that includes 6 elements in 5 groups.
The box size is the same of a small compact housing and inside you find a pouch that looks like a mini picnic basket.
The lens comes with a neoprene dome cover.
Other characteristics include an adjustable dome and a large loop ring. I am unsure if this is to secure the lens, as it is so heavy you can’t really remove it in water or to operate it more easily.
Thanks to that ring I could easily remove and replace the lens with gloves.
The other feature is the extremely large rear element that measures 48mm, larger than the Inon UWL-H100. This makes the lens virtually compatible with any camera at 28mm equivalent. Edward mentioned that it could work even with an A7.
The lens has a standard M67 mount.
So off I went to Essex to test the lens in a pool. I was hoping for girls in bikini or at least some model but the water was around 14C so off I went with my dry-suit and gloves.
The lens itself weights 1.28 Kg and is heavier than many compact housings including the camera.
I took some test shots with the WWL-1 and with the Inon UWL-H100 with and without dome.
First of all the WWL-1 seems wider than the Inon once you get rid of the vignette. I was using the WWL-1 with a Panasonic LX-100 in Nauticam housing and short port. The WWL-1 would stop vignetting at 28mm whilst the Inon lens needed zooming until 29mm.
Shooting a Snell’s window gives you an idea of the field of view.
The Snell’s window requires an angle of 97.2 ° in order to be fully captured along a specific axis. We can appreciate that the WWL-1 on the LX-100 at 28mm has more than the required field of view on the diagonal and horizontal dimensions but is narrower than required on the vertical axis. Looking at this image the field of view on the diagonal looks more around 120 ° this may be due to the fact that the lens on the LX100 even with the short port is still around 2 cm away from the glass.
However when compared with the Inon the WWL-1 shows a better field of view overall.
I did have some fun shooting through the window.
The calm conditions of the pool allow the camera to see through the surface.
Having concluded that the WWL-1 is at least as wide as the Inon UWL-H100 I took some shots with the PADI test cards.
The images are taken with strobes at an aperture of f/5.6 which is the sweet spot of the camera. I wanted to check what is the level of softness in the corners as well as chromatic aberration.
I took few shots where the PADI logo was right on the bottom corner and this is the crop.
There is some softness and virtually no chromatic aberration.
The lens has the typical barrel distortion of a fish eye lens.
I took the same shots with the UWL-H100 with dome and the corners were much worse in terms of softness, CA was not a big issue.
I then took a few shots with the UWL-H100 flat, the LX-100 stopped vignetting at 25mm.
I had to step back in order to be able to capture the two cards and I could not achieve a Snell’s window on the horizontal axis as expected however the field of view is impressive for a rectilinear image I would say around 108-110 °.
The wide field of view and the lack of the dome element present challenged, corners present both softness and large amounts of chromatic aberration.
Operating the lens and housing with gloves was acceptable and I could remove it as well.
What I liked the most is the fact that the hood can be adjusted without an allen key just operating the screws on the back.
The retail price of the WWL-1 is going to be $995, £769 and €1060 the lens is going to be slightly more expensive than the Inon UWL-H100 with dome but compared to the Inon it offers increased sharpness and contrast and comparable field of view.
The only draw back is the size the lens weights quarter of a Kg more than the Inon and is substantially longer.
If you are after the best optical quality for a wet lens this is the lens to buy at time of writing.
I would like to thank Edward Lai at Nauticam for sending me this pre-production model and Alex Tattersall at Nauticam UK for shipping me promptly.
I have not bought the item and I do not sell equipment this review is based on my independent view.
I will be testing this lens with the Panasonic GX7 and 14-42mm Mega OIS II soon.
The camera is available at £467 with £50 cash back from Amazon, during Christmas the cash back was £100.
In US this camera with the same lens is available at $647 which is pretty much the same price once you factor in the cash back.
The housing of choice is of course the Nauticam GX7 however if you look at the port chart the LUMIX G VARIO 14-42mm / F3.5-5.6 II ASPH. / MEGA O.I.S. is not available on the map.
The lens on the map is the old version Mark I that was much longer when zoomed in and out and therefore Nauticam reports as flat port the 72 and the 4″ wide angle port if you like a dome. Now 28mm equivalent is not great behind a dome as it is too narrow.
So what about the current kit lens? The good news is that it fits in the Macro Port 35 too.
The lens also comes very close to the glass closer than the Lumix PZ 14-42 X Vario.
If you have an Olympus OMD-EM5 the camera comes with the Olympus ED 14-42 lens that also fits in this port.
The Panasonic lens is overall a better lens than the Olympus and is sharper than the Lumix Power Zoom 14-42 it has better sharpness and less chromatic aberration.
Another good characteristic of the Panasonic 14-42 Mark II Mega OIS is the way the lens zoom works. The lens is the longest at 14 and 42 mm and shortest at 25mm.
As such if you add an Inon wet lens the Panasonic 14-42 does not vignette with either the UWL-H100 or the close up UCL-165, it does not even vignette with the dome this was reported on an old Inon port chart.
So this lens is an excellent candidate for wet lenses because it has very low chromatic aberration and the zoom mechanism means the lens is very close to the port at wide end.
I put the camera in the housing and took some shots in an inflatable pool.
As it happened with the 14-42 PZ lens you can fully zoom through the wet lens and the corners stay sharp. This picture is taken at f/5.6 so the lens is not even stopped down.
A residual problem is the lack of zoom gear however there are options out there in the market.
One of those is deepshot missing bits that is ran by Jussi Hokkanen in London.
The zoom gear for our lens costs £55 which is around less than half than any Nauticam gear, it is 3D printed and is not as sophisticated as the OEM gear so it is one piece of plastic with 3 adjustable rubber bits. The gear comes with a small allen key to adjust it.
I got in touch with Jussi and few days later he delivered the gear at London Waterloo station. The gear works perfectly with the lens as expected.
The kit lens is not exactly a macro lens this is a shot at the 42mm end.
The lens does not vignette with the diopter UCL-165 either as this image demonstrates from what I can see the chromatic aberration is minimal too in the corners.
The previous should give you an idea of the level of magnification the piece of paper as actually bent so there is not so much distortion as it looks!
So that means with an investment of £55 plus the macro 35 port that retails at £230 we are ready to use the kit lens once we have the GX7 housing.
Total cost in UK 417+1100+55+230=£1802
In US 647+1550+290+90=$2577
This is still more than the Sony RX100 Mark II that can take all sorts of wet lenses and will cost less, still producing decent video and superb stills. However when you look at the newer Canon G7X once you take into account the fixed port system and the fact that the Canon can’t take a semifisheye you wonder where to put your money. Plus a mirrorless camera allows you to choose a proper macro lens like the Olympus 60mm or the Panasonic 8mm fisheye.
The Canon G7X costs now £369 and the Nauticam housing £850 with the macro port, but you need to spend another £120 for the short port and still you won’t be able to reach more than 110 degrees field of view.
If you have Inon wet lenses from your compact camera this looks definitely appealing.
Also consider that other than the Inon UWL-H100 other wet lenses for compact cameras do not work properly with mirrorless as this article demonstrates.
Note that the same considerations apply for the Olympus OMD-EM5 however the olympus kit lens does NOT perform well with the wet lenses in virtue of the different zoom logic. The Olympus lens is not close to the port at wide end as the Panasonic and I would not recommend the combination.
Obviously if you do not own any wet lens you still have the option of the Panasonic 7-14mm with wide angle port or the Olympus 9-18mm with the 4″ wide angle port. Both options require you to buy the lens and the port as well, both ports cost more than the macro 35, and both lenses have a soft corner issue at their widest.
The other positive of the kit lens is that it is optically stabilized from what I can see the Mega OIS is as effective as the Power OIS.
So if you have a panasonic GX7 with the newer 14-42 Kit lens you may need very little more to get you going especially if you are into video as the lens fully supports the Inon last generation of wet lenses.
I would also recommend this lens as a macro lens for the Panasonic GH4 and 4K video shooting, due to the crop factor the lens will be about 35-110mm which is pretty good.
So if you have grabbed a GX7 at discounter price you may as well be close to have a very effective combination without having to spend a fortune especially if you have a selection of wet lenses at hand.
So time has come for my first video with a micro four third camera the Panasonic GX7. I had only 3 dives in Sharm and conditions on Naama Bay beach were not the best but still good enough to give the set up a good try, this is the resulting video.
I used the Nauticam housing with the Macro 35 port and the M67-LD adapter so that I could use the Inon UWL-H100 wet lens.
As it is not possible to fix the position of the lens I had to take the hood off and therefore I used an Ikelite UR/PRO filter for the 100mm lens. I had to use gaffer tape on the lens and inside the filter or it would be loose but it worked.
The first dive was with the URPRO filter in auto white balance, I was hoping this would give me good results but instead everything came with a strong yellow cast.
From the second dive I used custom white balance and the results were much much better.
To give an idea of the issue this is a shot of a grey card with the UR/PRO filter on land with white balance fixed.
You can see what kind of effect the filter bear it is orange in colour.
Other than this I was pretty happy with the GX7 especially because I could use the full zoom with the wide angle lens this is the first time I see it working. The moray eel shot towards the end of the video is an example.
Back home I was not happy at all about the UR/PRO and the inability to work with auto white balance. Probably I could have played with the tint but it did not come to mind. So I got in touch with Peter Rowlands of Magic Filters to see if they had an option that would fit on the Ikelite mount. Peter sent me two sample and they fit perfectly in the ikelite frame, though this is not commercially available I guess you can request those if you are not happy with the ikelite UR/PRO.
This is the same test card with the magic auto filter.
You can see that it looks less orange and also slightly colder.
I did some tests and the UR/PRO is a warmer filter with 2700K temperature whilst the magic auto is 3200K. The magic is however more red and has more magenta tint than the UR/PRO.
For me this means that the magic will work better in auto and will require less custom white balance. However those 500K difference mean you will eventually need to custom white balance once you go below 18-21 meters. I know people say filter work until 21 meters anyway but I have tried with deeproof down to 30 and on a bright day it was still good.
So if you are not happy with the yellow cast of your UR/PRO in auto white balance is definitely worth giving magic filters a go.
The GX7 confirmed all the good features including the ex tele mode
Here the shrimps are shot with a single Inon UCL-165 and then the close up of the head uses ex tele that pushes well over super macro.
Look at the incredible ability to refocus in video mode. See how focus locks on the shrimps when I press the button.
Overall the GX7 can do pretty much everything on a single dive with a wet wide angle lens and a close up lens. You can cover from 100 degrees wide to super macro. The fact you can zoom with the wide angle removes the need to take the lens off at every occasion and in fact in the red sea you barely need to have any other lens.
I was not particularly happy with the lack of hood that the ikelite filter wants removed so I experienced the occasional flare. Still pretty good result.
The clip looks much better at home than it does on youtube where the gap with the RX100 seems much smaller.
So as far as video is concerned if you don’t need 4K the GX7 gives you extremely high quality footage and reasonable cost.
A final note I shot this video in 24p at home I can’t tell the difference with 25p see if you can see it!
The Panasonic 8mm Fisheye lens for micro four third is a clear winner for close focus wide angle however the lack of zoom and the really wide 180º cover mean that there are many subjects that will look tiny in the frame.
The next option in terms of width is the Panasonic 7-14mm wide angle lens however this requires a large dome for optimal performance making the set up expensive.
Is there anything else left if you don’t want to buy a wet lens and you already have the Panasonic PZ 14-42 X Lumix G?
Panasonic produces an add on lens DMW-GFC1 that is declared to provide 10.5mm equivalent and reduce minimum focussing distance to 16 cm all specs can be found here.
This add on lens can be used with the 4.33″ dome for the 8mm fisheye and the 30 extension.
I took a few test shots and the results are pretty good.
This first shot is at f/5 and is very sharp in the centre.
Fisheye Converter f/5
Getting a bit closer and stopping at f/8 the results are pretty good for an adapter that is less than £100 on amazon.
Barrel distortion is contained so this combination may be good for wrecks where the fisheye effect is a bit disturbing.
If you have the Lumix G Vario X PZ 14-42mm you may want to invest in this little accessory before getting the much more expensive 8mm fisheye even if the Nauticam 30 extension is required. Later on the extension can be used with the flat port 35 and the Olympus 60mm for super macro and the 4.33″ dome of course with the 8mm.
I think it is amazing how much can be obtained out of this lens if we consider wet diopters, wet wide angle lenses and this adapter before you need to get a second lens.
This lens could also work for video with the Panasonic GH4 at 4K however zoom is not recommended with it.
Following from my previous post I managed to get together a clip out of the 5 dives I did
The first day was somewhat plagued by visibility a bit lower than the norm for the location but the second day was fabulous
For this trip I brought with me the Inon UWL-H100 and the red push on filter from deep roof H20 and the Inon UCL-330 as I was expecting medium size fish and nothing really small
Here is the outcome
I am quite happy how things turned out so let me share the settings with you
First I shot most of the footage in 25p AVCHD mode only some small sections are shot at 50p and actually I did not need to slow down any of the material.
For the wide shots I used steady shot in normal mode and shutter priority at 1/50th. With the filter on I had auto white balance with tint correction G2 A1. I noticed that the camera was giving red tint in some situation and so added a bit of green back. The Amber correction instead is for the RX100 itself the camera does not have vibrant yellow and is a bit blue.
For the first time I use creative mode changing the standard contrast to -3 in order to prevent crushing of blacks.
Exposure was set all along to -1/3 and metering to multi area with AUTO ISO limited 160-800.
I think the results are so good that in fact I have performed no colour correction to any shots in ambient light.
For shots with lights I set up first colour temperature to 6500K and A1 to match the lights but then in some of the far shots this resulted a bit cold so I adjusted very slightly in post the temperature.
Only 40″ are adjusted in the whole video in essence is as shot and the editing took me half hour.
I did a bit of analysis and the camera was operating for most at ISO200 with aperture around f/3.5 – f/4.0 which is really the sweet spot of the lens.
I did have some challenges using the UCL330 for some nudibranches that really required a stronger lens so they look a bit small, there was also surge so I had to fight with focus problems but all in all very happy.
The longer working distance of the UCL330 (20-30 cm or 8″ to 1′) proved challenging on walls as you are too far to hang on to anything or use a stick. I will bear this in mind in the future.
For the close up shots I used steady shot active.
I also wanted to say that a few times the camera did manage to white balance properly however the results were not exciting and frankly not worth the hassle. Using the filter is just so much better with the auto white balance.
I receive so many queries about equipment that I thought I would put some of my items on sale.
My cupboard is near enough to explode and I need to streamline the equipment I have. Currently I have 3 strobes, a huge selection of ball and clamp arms, 3/4 and 1/2 locline arms, float arms, floats, video lights, tray bases, around 15 clamps and some 6 macro wet lenses and 3 wide angle wet lenses with 3 different mounts.
I guess it is time for a clear up so I will add a section with items on sale where I will list some of the combination items.
The idea is to provide a full set of lenses or a tray + float solution as those seem to be the most asked for items in my set up.
So if you look on the menu you will see the link Sales items with details of the various sets. I can also sell the items individually but I think this makes little sense as I’d rather do that on ebay.
Many people read my posts and then go to gear shops but there there is always a little mistake or problem getting the whole set up from here you avoid that. I priced the items based on 50% of retail UK price and I would ship to UK and Europe, other overseas will attract import duty so it is not worth it in my opinion.
If there is anything you like use the contact form on the relative page to inquiry
I am currently in Malta for few days relaxing and I manage to squeeze in some dives. The Mediterranean sea is nothing sensational (from a pure diving point of view) but does offer clear water, and some brisk thermoclines, and a combination of algae, blue water, caves and silvery fish that is challenging on the dynamic range of our little RX100.
The purpose of this trip is mostly to refine the video settings and go more in depth in few topics. I wanted to try specifically the following:
Medium size fish portraits
Caves and low light
Some of my settings will be the same and I am not intending to changed them those are:
Auto ISO: 160 – 800
Starting off with metering, the first attempt was to try and use the camera on 0 exposure compensation with centred weighted average metering.
Pretty soon I realised this gave issues of banding of the blue water, this was apparent not only in backlit shots but also in normal wide angle of fish in specific cases. So after dive number 1 I changed it to the standard -0.3 from dive 2.
I set a new creative style with contrast at -3 in the hope to recover detail and seem to be working fine with the shots still having plenty of contrast.
I also tried spot metering for close up but it makes no sense the video lights are too wide and ended up with burned highlights at the edges of the frame so back to centred weighted average for close up shots.
So when it comes to metering my settings are:
Wide angle: multi area
Close up: centered weighted average
I did some tests with stabiliser in steadyshot mode, this gives back some field of view and the lens offers 100 degrees diagonal and 90 horizontal, I actually think a bit more anyway with fairly stable conditions this worked fine. At longer focal length for close up I am still using active mode.
I have a +3 diopter for this test as I realised in my last still trip I don’t have a lens for medium size fish, the lens worked very well and I also tried the camera tracking focus but it seems it won’t work with fireworms or similar. So either keep normal focus or manual with peaking.
White balance has been a subject of discussion, I did manage this time to white balance a few times but to be honest it was not worth the effort there is a better correction of the purple hue of the filter but this can be corrected setting Green to 1 or 2 in AWB. I also changed the AWB to include a correction with Amber 1 as per examples. Very happy with the results I think this is the final set up with this filter lacking a proper orange filter.
Shooting in low light was rewarding with ISO maxed out at 800. I am becoming less and less a fan of video lights in cave due to the amount of backscatter am getting. I think I will default at using the lights as dive torches instead of wide beams of even leaving them off for effect.
On Friday we were up for our last 3 dives at Shark Reef the current had not changed but this time I decided to give more a go to the schooling fish after setting up all the backgrounds I wanted.
As you can see from the image on the title we had more of the usual divers chasing fish but this did not deter me this time as I developed a specific technique to do the dive that I used fully on the last two photo dives.
So after a bit of experimental shots like this one
It was time to give it a proper go. To be honest is not that I like batfish that much and probably this is one fish that you can shoot in RAW in ambient light however if you do that you need to sacrifice quite a few ISO stops. With strobes the issue is to get the school in a formation that allows you to do a good job with lighting. This is my best shot for the session.
What I like about this shot is the light on the fish or most of it where you can see yellow fins but also the background and a hint of surface.
Other fish that featured on the day were jacks but catching a school of those running past is quite hard unless the school is really big and they circle you.
In those type of formation you have all sort of issues with hightlights form the strobes in fact I was shooting 1/4 of power.
Giant trevallies made a more interesting single fish shot like this one.
Contrary to what you may think this is a shot with strobes otherwise you would not see the texture of the fish as you see it. Maybe a busy background but good technical exercise.
I also attempted a few anthias shots just to try a well tested technique to get them buzzing out the reef
In the middle of the dives while I was waiting the barracuda school came out to play. Barracudas are quite tough as they require strobes to lit properly and I find the multitude of black and white shots that you see a bit boring as the fish texture is what makes the shot.
You have several challenges with the formation, if the school is big is difficult to take it all unless you are on the bottom or on the top. In the first case you need to control bubbles in the second you shoot the bottom so better be neat.
Anyway with a bit of patience I got the shot that I wanted
It is impossible to illuminate properly all of them but this shot has got the right geometry and I think is quite pleasant.
On the second dive I was lucky to spend some time with a Giant Barracuda that was literally commanding the school at sight, very rewarding from a diving point of view I got so excited that I kept shooting with a relatively slow shutter speed however the fish that is lit by the strobe is well crisp.
This shot is much deeper than the previous so the blue is colder but still makes for an interesting shot.
On dive 3 I decided to do a bit of video although I had not taken my favorite lens so I had to apply a filter directly on the camera lens. Moreover I had forgot the setting Toy effect on from some other experiment and whilst this is off in RAW it came back in video so the result is a soft warmer image…yuk still was fun to put it together so here it goes
It was time to rinse the gear (if you could call that hosing it quickly on the dive platform) and get ready to leave the day after. On the last day we were asked to put together a selection of our best 10 pictures and were give a video with some gopro footage taken by the ops manager plus our slideshow. Considering the time it was spent to do it the result is excellent.I hope this has given you an idea of the workshop that I definitely recommend, on the next post I will write my personal lessons learned from such experience.
As the currents were not playing ball we decided to head to Tiran to dive Jackson reef.
I love jackson as a dive and a video dive but I was a bit vary from a photography point of view as lighting can be a problem.
Anyway there was an option for a hammerhead dive in the early morning or a first dive on Jackson followed by a second before returning to Ras Katy for an afternoon and sunset dive.
Hammerhead are found on the back of Jackson reef when there are shallow thermoclines with the surface at 26C the chances were low however I had alternative ideas for that dive.
As foreseen there were no hammerheads so towards the end of the dive I tried a few shots of the Lara Wreck (that is on the surface) through the Snell window despite the strong surf.
The resulting shot is currently my desktop theme and is here.
I tried to get the wreck on the surface, the breaking surf, the sunball, some fish or at least silhouette of fish and the hard coral to give a dramatic moody look to the image.
On dive two was time to have a relaxing dive with not much effort on photos. I saw few tunas at around 28 meters that is unusual and a turtle and some other critters though the shots are not particularly exciting.
In one occasion a dive guide came to be all excited as he had seen a turtle so I went there and bumped into our own guides that were out for a fun dive.
They usually are asked to get out of the frame instead I took the shot for their facebook perusal.
When the turtle had enough she shot off to the surface and I tried a silhouette however I forgot the strobe on
Nothing that lighroom can’t fix and this is the resulting shot after adjustment
Not bad huh?
Back at Ras Katy I tried few more portraits like this one
Though my favorite is another
At sunset I was part of the mermaid group, we had a model Katrin Felton suprising what a phenomena Mermaid tails have become.
We had a 2-3 shots in different poses however only the first was successful as the snell windows was ruined by one of the photographer that keept shooting with strobe…and getting in the way as she did not listen to the briefing properly well no big deal.
Anyway I gave it a shot afterwards Kat was not particularly happy about the barrel distortion that she said makes her look fat! Unfortunately I did not have a rectilinear lens anyway if you find yourself in this kind of set up make sure you have one.
All in all it was a bit of fun again I tried to include some fish, the reef, the mermaid, the sun rays. I looked at other pictures of the mermaid and I think she can’t appreciate how important is not to see the knees too much but I guess she likes to focus more on her figure on how slim she looks lol!
All in all another great day and a different perspective on shooting model underwater.
Once again Sony has updated their RX100 camera with a stunning new release that will surely be a market leader at least until the release of the new promised Panasonic large compact sensor with 4K video recording.
So the question is again is it worth throwing our hard-earned money to this new model and housing or should we stay with what we have got? The Mark I and II are still available at reduced price though it is becoming harder to find Mark I housing as new.
The answer to the question is: it depends on what you are planning to do with your RX100, for some users an upgrade may not be required or even not advised let’s see why. no don’t waste any time with the Mark III.
Every time a new camera is released and reviewed I get a bunch of emails with subject: New Camera XYZ what do you think?
The best reviews you find online are made by sites that specialize in land photography and no consideration is given to underwater use. So not necessarily a camera that is a top performer on land will remain such underwater as this depends on specific characteristics that may be different or even opposite to land requirements.
So those reviews cannot be taken as they are they need interpretation. Personally I use two sites for camera reviews imaging resource and dxo mark I use the first to understand ergonomics, performance and to compare images with other cameras side to side, and the second to check sensor quality and lenses. Imaging resource has made a good article to compare the various RX100 on land read it here
If you look at a sensor comparison on DXOMark you would conclude that there is no need to upgrade at all if you use your camera primarily for still pictures as the sensor are practically identical in performance as this table demonstrates:
As you can see the differences in dynamic range, color depth or ISO are pretty much intangible.
However there are other metrics that are also important let’s see which ones and why.
We want our camera on board flash to recycle quickly after a full dump as the RX100 has only TTL flash and the flash can’t set to a minimum manual setting without consequences. Those are the flash recycling times at full output (a full dump will always occur when you don’t aim strobes directly at the subject for example wide angle)
Mark I: 7.2 seconds
Mark II” 4.4 seconds
Mark III: 3.3 seconds
The Mark III is pretty quick and the Mark II is acceptable the first release is definitely too slow.
Minimum Capture Area & Zoom
What is the smallest area that can be captured at wide end at the closest focus distance? This gives you an idea of out of the box close up performance
I do not have precise metrics yet but looking at comparable images on imaging-resource seems like the Mark III is worse than the Mark I and II of at least 20% with a capture width around 90mm versus the already not very good 76mm of the Mark I and II.
To fix this issue we use close up lenses in water that fix to a great extent the focal length and then zoom in to achieve magnification which means longer camera lens more magnification I roughly estimate that the Mark III will be worse of a factor of 0.7x so things will look 1.4x bigger with the Mark III this is terrible news for macro shooters as it means you need to be on top of the subject to fill the frame, this is in some cases not possible.
I have estimated that you need 11 diopters to achieve 1:1 macro so the Subsee 10 and Inon UCL100 that gave real macro on the Mark I and II won’t be sufficient. With two UCL-165 or Dyron 7 you are looking at 2.58″ or 6.5 cm from the back of the first close up lens that means you will be right on top of the subject which is not really an option.
Update July 18th: Nauticam has confirmed that even with their SMC lens the most powerful diopter on the market the capture area is 38mm wide so does NOT achieve 1:1 macro as I suggested…
Lens Focal Range
The new mark III has a 24-70mm lens compared to the 28-100mm of the Mark I and II what does this mean?
Less magnification with close up lenses and no real 1:1 macro
Vignetting or even not possible to use fisheye lenses designed for 28mm lenses
This means that with the Mark III your scene selection will be restricted compared to the 150 to 24 of the mark I and II.
Update 23 July I have done some tests that confirm my suspicions please look at the following frames. The Mark III once zoom to 28mm actually works fine with the Mark II housing except the power button.
With a single Inon UCL-165 (+6.06 in water) the minimum capture area width is 5.4 cm which is bigger than the Mark II 4.8 cm. Not only that the distance from the top of the lens is only 9cm.
With stacked UCL-165+UCL330 total power 9.09 diopter we get this
4.4 cm width however we start running into problems as the minimum distance from the lens is only 4cm.
We finally achieve 1:1 with two stacked UCL-165 however the distance from the top of the lens is 3cm definitely too little
I have also tried the Mark III at 28mm and it still vignettes with the Inon UWL-H100 in air until around 30mm. Instead the old UWL-100 28AD is fine at 28mm either way image looks narrower than with the Mark II but this may be an issue with the old housing.
So basically no macro with the Mark III and no decent fisheye as expected.
Underwater Photography Conclusion
Due to the reasons above the best camera for the job is the RX100 Mark II, with the Mark I coming close but being penalized by the strobe recycle time, the Mark III really is not an option for the serious shooter due to limitations of the lens.
Let’s have a look at some other features of the Mark III that are not relevant for stills as much as they are for video.
Shooting at the surface with plenty of ambient light or on land can create problems if you want to follow the 180 shutter rule, the ND filter of the Mark III ensures your footage will be smooth on land and in water. Take into account that on land you can apply optical ND filters (I have it for the Mark II) so this is really for underwater use when you are shooting at 1/50 or 1/60 shutter speed and the scene is too bright when you hit f/11 and the lowest possible ISO. Having now tested this feature I confirm it is really valid on land on a bright day to keep the aperture wide.
Clear Image Zoom
This is a special digital zoom with edge enhancement that only worked on JPEG stills on Mark I and II but is now available on video on the mark III. This means an additional 2x zoom is available bringing the focal length to 140mm that is more than adequate for macro. This is not an option on RAW images so irrelevant for still users.
23 July update Having done some tests for macro video (as stacking two diopters is not an option) the image quality suffers but anyway this is all you are left with lacking any other options.
The Mark III adds a further stabilizer mode with additional crop that takes the lens to 96mm equivalent in video mode. This is well worth for super macro hand-held footage and effectively provides an option where you can either use the super steady shot and no clear image zoom when hand-held or leave on only the optical stabilizer and use clear image zoom. If you shoot macro on walls and not on flat sand this is a well worth feature.
Update 23 July 2014
Following a side by side comparison you can find on this link
It follows that there is really no 5 axis stabilisation and only an additional mode with more crop with correction for rolling shutter that anyway does not really work!
Full Sensor Readout Video
The mark III reads the whole sensor not just alternate lines when capturing video this increases should increase the resolution to a great degree and increases the perceived resolution and clarity of your videos. However this does not seem to correspond to real life tests. See this sample with a side by side comparison the Mark III looks visibly worse than its predecessor even on the higher bitrate XAVC!!!
The Mark II introduced a well welcomes 24 Mbps 24/25 fps mode now the Mark III introduces a 50 Mbps mode in XAVC (that can be rewrapped into normal MP4) that produces even better footage although it will be quite demanding on your workstation and most likely some of your home devices will struggle playing the files (my Apple Tv 3rd generation only plays up to 25 Mbps) when uploading files online this will downgrade to 8 Mbps so won’t matter unless you have a good player at home. improves nothing and requires manipulation as the files are actually not MP4 compliant as they have WAV audio (!) they are also inside the AVCHD folder which is painful. As seen above seems like the encoding has got worse on the AVCHD files and only the higher bitrate compares but still does not match the mark II at the lower 24 Mbps!!!
You can now connect the Mark III to an external HDMI recorder if you are into that kind of semi pro usage. For the normal user this is not relevant: if you are into spending that money probably you have already a DSLR or a Panasonic GH4.
Video Auto Focus
The auto focus in video has got worse you can see an example in the stabiliser test, and actually plenty of frames are blurred on the mark III. Awful!
Underwater Video Conclusion
The Mark I with only a 28 Mbps 50/60p mode is definitely a poor choice, the Mark II is acceptable to most users. and the mark III promises even better performance if you are a serious video user and have another camera to take pictures the Mark III may be well worth it.
The Mark III despite some useful feature is actually a let down and perform worse in practical terms than the mark II that remains my camera of choice.
If you have a Mark I camera and are frustrated with flash recycling you should be looking at a cheaper upgrade to the Mark II.
If you have a Mark II and your priority is photography upgrading is NOT recommended.
If you don’t have any RX100 get yourself a Mark II or wait for the new Panasonic as the Mark III is pretty much a pile of crap.
Is it the first time I am actually sending back a camera and invoking consumer rights but when I spoke to the camera shop they told me they had other returns and this is not really an upgrade!!!
The above image was shot at 100mm equivalent with one diopter with the RX100 Mark II. You won’t be able to fill the frame with the same close up lens and the Mark III camera