Architeuthis

PetaPixelThe Sony a7R VI Has the Best Dynamic Range of Any Full-Fr...The Sony a7R VI enters medium-format territory.

Just out of curiosity: in case one would switch from Nauticam (e.g. A7R5) to Marelux A75(R6) housing, would it be possible to mount a single adapter to the Marelux housing and continue to use all Nauticam ports/extensions (and adjust the regular Nauticam extensions for an easy to achieve distance (e.g. +/- 10mm) to compensate for the difference in sensor<->port mount distance)? Which one?

I forgot to mention that Seacam said "This is not possible with a simple adapter", concerning my situation with Nauticam housing for Sony A7R5. I did not measure distances and compare to Seacam ( distance from housing mount to the sensor), but the information from Seacam suggests that the Seacam port, designed for Seacam housing, is too long for adapting to a Nauticam housing for Sony FF... I have no idea about Canon, but probably they will tell you when you ask them...

Just out of curiosity I asked Seacam whether they have tested more lenses/systems for use with OPP, especially Sony FF (I am just curious and not planning to acquire OPP in the near future). I was told that Sony FE 16-35mm f/2.8 GMII works perfect with OPP... They say that the right extension is critical, but they do not support use of their products on other parties housings (I have Nauticam). It should, however, not be a big problem to find out the right extension for an adapter, in case one wants to go rectilinear...

I can highly recommend a mask with glued in optical lenses (not just reading glasses in the lower area. E.g. I have a multifocal, near- sightedness and astigmatism corrected mask and I completely forget UW that my vision is impaired (the 700 Euros for such a mask is worth every cent; I have invested more money in some gear that I do not need/use)... Besides this, any of the optical stores (as e.g. recommended above) that produce such masks will glue you in reading lenses in a mask. You can buy masks with premounted reading glasses, e.g. here: https://www.uwfun24.de/polaris-maske-plus-tauchermaske-schnorchelmaske-mit-nahlesebereich-175-schwarz?etcc_med=SEA&etcc_par=Google&etcc_cmp=PerformanceMax&etcc_grp=&etcc_bky=&etcc_mty=&etcc_plc=&etcc_ctv=&etcc_bde=c&etcc_var=CjwKCAjwrNrQBhBjEiwAoR4VO-JI2bhFrJAjgnr3Czm1TjN7tJcH0QoRjfi5W0SoiVOOKTQ4v0QxXBoC0ZoQAvD_BwE&gad_source=1&gad_campaignid=20743095818&gclid=CjwKCAjwrNrQBhBjEiwAoR4VO-JI2bhFrJAjgnr3Czm1TjN7tJcH0QoRjfi5W0SoiVOOKTQ4v0QxXBoC0ZoQAvD_BwE or you can glue in the reading glasses by yourself, such as e.g. here: https://www.tauchversand.com/leseeinsaetze-fuer-jede-tauchmaske-1-75?srsltid=AfmBOooh5axfdLgnt5lieVMdEvn4vJGLUqmJH39IKZekxTNv5EvwAUmaR60 Wolfgang

I fear even the Kenko TC is not possible with native Sony FE lenses. As far as I know, the Kenko TCs are produced only for Nikon and Canon EF, see e.g here: https://kenkoglobal.com/product/teleplus_hd_pro_1_4x_dgx/#specifications

There are several factors: #1.: the prodruding element(s) of the Sony TC(s): the mechanical exception, i.e. TCs that work with almost any lens, are the Kenko TCs, that do not have such protruding elements. Native TCs (Sony, Canon EF, Canon RF, e.g.) have protruding elements that make it impossible to mount the TCs on most lenses, except the lenses for that the TCs have been designed for... #2.: The electronic communication of Sony TCs is often blocked by the firmware, even when the native TC fits mechanically, unless it is a lens that is approved by Sony to work with the native TCs... #3.: An exception is the arrangement Canon EF 8-15mm/Metabones V (Canon-EF to Sony FE)/Sony TC (1.4x or 2x), where the glassless adapter provides the space for the protruding element of the native TC(s) and the camera is communicating without problems with the TC/adapter/lens arrangement (It must be said, however, that this communication could potentially stop to work with any firmware update of the camera)... => It would be great in case it is possible to use the new AF fisheye lens with native Sony TCs, but it would be a very pleasant surprise for me in case it is possible (even if it is possible mechanically and electronically, there remains to be seen how the optical IQ is)... Wolfgang

This is interesting... You say the Sony 2x TC will fit into the Laowa 8-15mm f/2.8 fisheye lens? In case it fits mechanically and electronically it will be very interesting to see photois made with Sony 1.4x and 2x TCs...

When used as it is, i.e. circular fisheye and/or 180° diagonal fisheye, it is certainly an advantage (in case optical IQ is o.k.). I see no way to use TCs, therefore still no substitute for Canon 8-15mm & adapter...

A review about the older manual focus version came out: https://opticallimits.com/nikon/laowa-8-15mm-f-2-8-ff-zoom-fisheye-review/

The entire setup (camera with Canon 8-15mm fisheye, rectilinear WA lens plus dome/wetlens or macro lens plus port) will be almost the same, no matter whether you mount a real (MFT) camera or the GoPro with its tiny sensor. I find the GoPro with the fixed WA lens interesting for someone who wants a tiny UW camera, the interchangeable MFT lens version is too weak to use it UW as a system camera...

Interesting review... Did you have a chance to test IQ, when MFO-3 is used with the lens & 1.4x TC?

Yes, please ask... I think there are several interested...

I, personally, am not a compact camera UW photographer... This camera looks to be an alternative to the common Sony and Canon compact cameras used UW? https://www.dpreview.com/articles/9011490317/panasonic-l10-2026-tour-controls-changes DivePhotoGuideNauticam Announces Housing for the Panasonic Lumix L10

Can you please give details about the manufacturer and how to order the floats?