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Re tests with 16-25 which I own: With 180 dome, A7CR / A7RV body, 25mm adapter, 50mm ext - alignment is theoretically perfect (0mm misalignment of OC at EP). IQ score at 16 is corners 2 at f8, 2-3 at f11. At 25, score is almost 3 at f11. I have explained my scoring system in previous posts, but for a quick recap, I look at the area of central sharpness at 100%, to see where it falls off (stuff that should be in focus is in sharp focus - quite easy to judge). 2 = a circle of 24mm diameter (touches mid long sides of 3x2 FF frame), 3 = 36mm (touches mid short sides of frame). With 140 dome, 25mm adapter, 35mm ext - alignment is -3mm (i.e. 3mm too long). Score is identical to the above (surprised me). As a variation you could reduce ext to 30mm with alignment of 3 (needs 3mm more). You could also use 35mm adapter + 20mm ext. Re Nauticam port charts, I emailed them and spoke to their agent about including this lens - no joy there (unsurprising given their lack of customer support). NB - you will need a zoom gear. Not available from Nauticam but fortunately the gear for 24-50 fits well (these two lenses are a matching pair from Sony). Final point: given you have 20-70 on your list, I would buy this first - it may be that 20mm is wide enough for you. About 10 degrees difference to 16, and works well with 180 dome, plus giving you handy close-up ability. Unfortunately, 20-70 does not work well with 140 dome (radius of 70mm is too small to accommodate the lens extension of about 40mm at 70mm FOV, so you cannot achieve decent optical alignment). However, 140 should be OK with new fisheye (fingers crossed)!

Nice to hear from you. What boat are you going on ? Raja is our favorite place so far, so we booked a return visit for January. Many boat options, but they all seem to get booked up fast. We chose the Dewi for this trip.

You are thinking of the EMWL. I'm talking about this lens: https://www.nauticam.com/products/macro-to-wide-angle-lens-1-mwl-1-150-deg-fov-with-full-frame-60mm-macro-lens Although obviously nowhere near as wide.

Interesting…potentially macro, super macro, mid, and mid-wide with a 90/100 and a triple flip.

Hi Sharyn, Welcome aboard! Ciao

Some improvements will be better quality flash tubes tested to 1 million flashes at five second intervals at full power. These tubes also make the manual power settings more uniform across the range. Perhaps a small power increase, to increase power you decrease recycle times so max power is not the goal but rather a balance of both. Our strobe already has a 120 degree beam angle with a beaded dome which softens light across the frame. Many competing strobes have a flat front with a narrower beam angle which may look brighter in the center but don't extend to 120 degrees and with a diffuser added to reach 120 degrees power is reduced often by a stop or more. The modeling/video light is new and is 3000 lumens at 5500K and with a CRI of 95. Some other strobes have higher lumen target lights but with low CRI values. We have universal compatibility offering Manual, TTL, RC (including RC-Manual, RC-TTL, and RC-FP), Pre-M, and HSS. It also introduces Marelux’s proprietary MTL mode not offered on other strobes. The Apollo III 3.0 continues to lead with its advanced wireless optical triggering technology. Working with the LumiFlux and Artemis 4500RMT 2.0-S or the earlier Lumilink, it delivers a reliable remote triggering range of up to 15 meters, even at depths of 10–20 meters underwater. Without the restriction of fiber-optic cables, you can position your Apollo strobes anywhere within range, unlocking ultimate freedom and creative potential for your shoots. You can find all of this information and more at the link. https://www.marelux.co/products/apollo-iii-30

Not at all like MWL-1, not upside down and backwards and not nearly as long. More like the MV60 that takes 90 to 105 in the 50/60mm angle of view, MV24 will take the 90 to 105 range to 22/24 AOV range on a flip adapter along with the Mv60 or by direct mount. Minimum focus to infinity to be determined.

Regarding the Sony FE 16-25mm F/2.8 G I want to be clear that I said I tested it in the 180mm dome port I did not do a test in the 140mm port. Second I don't think the 16-25mm appears on the Nauticam charts with any port. The Nauticam charts do show the 16-35mm F/4 and they say that lens works best with the 250mm port and 70.5mm of extension. It also works with an N100 180mm port and 50mm II extension but in the N120 180mm port it takes the N100 to N120 35.5mm II extension and the N120 20mm I/II extension or 55.5mm of extension. So thats's the 250mm port that does not appear to exist in N120 anymore. N120 180mm port $1700.00+N100 to N120 $680.00+N120 20II extension $660.00 or N120 20 extension $390.00 total $3040.0 or $2770 depending on extension. Advantage will be the N100 to N120 can be used with other ports and lenses. The N100 180 port $1600+N100 30II $550 and N100 50II 610 total $2760. The upside all N100 and the down side may not be as usable with larger lenses and ports. With Marelux it would be the Marelux five inch 180mm dome port and five inch 40mm extension. That's $1380 port and $286 extension with lock. Total $1666.00, works with any lens on the lens chart and interchangeable between all full frame camera brand housings, so Canon, Nikon, Panasonic or Sony. Nauticam housing for Sony A7R VI $4800.00, Marelux housing for A7R VI $3398.00 a difference of $1411.00 so $7560.00 NA housing and port system (cheapest option) V MX $5064.00 all in with no accessories like vacuum, flash trigger. I have owned more than ten Nauticam housings over at least nine years or more, they make excellent equipment but so does Marelux, Aquatica, Isotta, Seacam and several more in the aluminum housing market. For those entering and buying an entire new system or looking to upgrade they should really look at all that is being offered currently. One manufacture is not the Holy Grail for housings, wet lenses, strobes or other related items. I reviewed the Tamron 17-28mm in uwpmag.com, back issue #119, you may also want to checkout Sigma 17mm F/4 (outstanding lens) issue #133, Sony FE 20-70mm issue #132 and many other related items. Back issues, Phil Rudin in the search engine for about 120 more articles. So far - - Sony 16-25mm F2.8 G - Sony 20-70mm (F4 G model?) - Tamron 17-28mm You may also want to add, Sony FE 16mm F/1.8 Sigma 17mm F/4 Sigma 20-200mm F/3.5-5.6 DG, this lens is supported by Marelux with a zoom gear. It focuses to 1:2 from around 28 to 85mm (better than the Sony 20-70mm) and in the Marelux 180mm port it will focus from 20mm to around 140mm. It is also a better choice than the Sony 70 to 200mm F/4 macro which is also supported by Marelux. Images with Sigma 20-200mm at 20mm and 81.1mm behind a180mm dome, impressive coverage to me.

Hi I'm Sharyn, Australian living northern NSW. I'm a wildlife photographer not long ventured into the underwater world. Here for the community and tips :)

Wow Ron nice video, bummer on the auto white balance but you captured some nice scenes. The Komodo dragon at the end was classic I was worried he was going to eat your camera!!! Kelly and I will be in Raja Ampat in December.

Congradulations that's some beautiful Six Gill footage. Well done!

Like an MWL-1 for longer focal length and not quite as wide. I'll be curious to see cost and some test shots.

Similar Internet user here...😁

@RomiK im not familiar with X6 I-log color correction and davinci.. i was just trying to genuinely understand whats causing the magenta/pink, because ive seen other videos from X6 underwater with same outcome..

Bit of a bump, but anyone fancy a 160mm hemispherical dome: https://rovmaker.org/product/underwater-optical-glass-dome-lens/

Here is something interesting. While thumbing through Marelux’s website yesterday, I happened to see on their Wet Lens page a listing for a MacroView MV-24 Wet Conversion Lens. I don’t know when this was added to their site, but this new mystery optic is described as another conversion lens for a 90mm to 105mm macro lens designed to provide the equivalent focal range underwater of a 24mm wide-angle lens. https://www.marelux.co/products/macroview-mv-24-wet-conversion-lens

A bit over a week ago Marelux released the 3.0 version of the Apollo III strobe - but there doesn't see to be any information from there about how it differs from the Apollo III 2.1 previous version - @Phil Rudin or anyone else?

Sssssh!😂

Finally getting a chance to reply once again - someone else has been spending time ON my laptop today Many thanks for all of the replies - it is good to get some really great feedback. Cheers to @Phil Rudin for the detailed explanation of how shorter MFD is needed for smaller domes etc. I'm keen to avoid the need to carry a 230mm dome, but am happy to carry a 180mm dome (especially as Nauticam make a N100 180mm dome), so I guess what would be useful is everyone can add to the list of lenses for Sony full frame that will work with a 180mm dome (Sony or third party). So far - - Sony 16-25mm F2.8 G - Sony 20-70mm (F4 G model?) - Tamron 17-28mm Any others? The Sony 16-25mm F2.8 G would be fine instead of the 16-35mm, the 20-70mm would be fine for the archaeological work although oddly the Nauticam port charts only offer a N120 180mm dome solution with N100-N120 adaptor instead of a N100 180mm solution. I am planning to add the new Sony 8-14mm Fisheye once a port becomes available.

Have you not read about NO LUT for manta clip? 🤦‍♀️ I-log processed and conformed to Davinci wide gamut by resolve studio. They already have I-log provisions. More so I don't understand why then you have need to post silly jpeg to show highlight blowout. You can see on that clip and on your screen that sun is shining through the water and crispy. JPEG will show you none if it... 🤦‍♀️ 12m is not that big of a water column and it was sunny that dive. What else do you need to have explained. Magenta in water? Have you ever not seen one when looking up on a dive? Listen I can see you are a fan of GoPro from your past posts, thats fine. I am not a fan of Insta360, in fact X5 underwater with their domes was a bit letdown, not improved by much with nauticam housing. But with X6 they just nailed it. Will action cam be better for certain things? Off course it will. Say macro for example. But for majority of divers who document their dives and want to create nice memories or document wrecks and caves there is no upside in using action cams compared to X6. Not in color, not in dynamic range, not in sharpness, not in low light performance.

Did you test also the Tamron 17-28mm? How is performabce against the Sony 16-25mm, if yes? Thanks, Wolfgang

Are you sure about the 140mm dome (I cannot find this dome as beeing compatible in the Nauticam charts)? What extension are you using? Would be great, one small domeport for both fisheye and rectilinear WA...