waso

Could you please post a link?

I'm not familiar with the Wolfbox blower, but I've been using the Nitecore BB21 for several years now and I'm very happy with it: https://www.nitecore.com/product/bb21 It's definitely a good gadget for removing water and dust, and certainly much more powerful than a manual blower.

Hello, I'm selling a completely unused Retra LSD adapter for the Sea&Sea 110 alpha strobe. It's been sitting in my closet for years and I sold my Sea&Sea 110 alpha strobes a while ago. It's fully functional, but it has a few minor scratches from being stored with other underwater photography gear, which are barely noticeable. Insured shipping from Germany is possible upon reimbursement of costs. 40,- € As this is a private sale, the item is sold without any warranty or guarantee. Liability for damages resulting from injury to health, body, or life, and for gross negligence and/or willful misconduct on my part as the seller, remains unaffected.

Just tested it: the difference is visible on my MacBook Pro M4, but nowhere near as pronounced as on my Eizo monitor. Therefore: the Adobe RGB color space is probably not being reproduced at 100% accuracy.

Yes, it fits after some modification with a round file.

I need to bring this topic up again because I need two zoom rings for my Nauticam/Canon Fisheye 8-15/4 (N120) combination: One for the RF 1.4x and one for the RF 2x. Does anyone have any suggestions on where I could get these? Unfortunately, I'm not at all familiar with 3D printers, but perhaps there are templates available. Thanks in advance!

You're welcome!

In case any Canon full-frame mirrorless photographers are interested: I tested a modified Commlite RF/EF adapter with the Canon RF 1.4x extender against the Canon RF/EF adapter with the Kenko 1.4x Teleplus Pro 300 DGX extender on my R5 and the EF 8-15/4 fisheye lens, unfortunately so far only above water. My primary goal was to determine whether the overall image quality with the Canon extender (which I already owned) was better than with the (relatively old) Kenko, which I've been using for many years on Canon DSLR cameras and for the last three years on my R5 with the 8-15/4. I tested at both 15mm (180° diagonal) and 21mm focal lengths at f/5.6, f/8, f/11, f/16 and f/22. Generally speaking, the Canon RF 1.4x is significantly superior to the Kenko 1.4x in the corners at both focal lengths and all apertures. In the center of the image, there's hardly any difference (you can see something at larger apertures) - and I even examined all the images at 200% and 400% zoom to be able to make a truly precise comparison. Furthermore, the Kenko vignettes significantly more than the Canon and has a cooler color tone. Naturally, the difference in image quality will be less noticeable and significant behind a dome port! It's somewhat annoying that the Commlite doesn't display the aperture correctly (the camera only recognizes the aperture without the extender) and the focal length is also incorrectly displayed (15mm is recorded as 11mm and 21mm as 15mm in the EXIF data). The Kenko, like the Commlite, also displays the aperture incorrectly, but at least the focal length is correct. With the Commlite/Canon combination, you should also deactivate the in-camera IBIS, otherwise the sensor will wobble strangely. Since I also own the Canon RF 2x extender, I took the opportunity to test the combination with the 8-15/4 at 16mm and 30mm. Generally speaking, at 16mm, the corner performance is noticeably worse than with the 1.4x extender at 15mm. At 30mm, the overall image quality (including the corners) is surprisingly good – best at f/11. Therefore, if you expect to only shoot shy big fish and not wrecks or reef scapes, this combination could be a solution. Please note that these test results are only valid for above-water! I now need to find some zoom rings for use with both extenders. If anyone knows of alternatives to Nauticam (they don't sell one for the 2x extender - as far as I know - and the one for the 1,4x is incredibly expensiv), please feel free to comment here. Sorry that I can't provide any images from this test at the moment due to time constraints.

Okay, thanks, then unfortunately it's not relevant for me.

Thanks! Do you know by heart which camera and which TTL triogger fruehaufsteher2 uses? I can't find any information about that quickly.

Unfortunately, there seems to be no experience with this topic in this forum. For a one-size-fits-all strobe solution, TTL is a must have for me and therefore I will probably buy the HF-1.

I haven't controlled the images on my Macbook Pro/Safari (gonna do it tomorrow), but on my Win11/Eizo machine I can see significant differences in all images. Which browser are you using?

Btw: I just checked and my old smartphone (Samsung A53) can't display the differences.

Here are a few examples so everyone can compare them on their different devices. The first image is always in Adobe RGB, the second in sRGB. This doesn't just affect WA photography, by the way macros are affected too (depending on the background color, of course) - ok, no super macro photography 😁: Interestingly, and I noticed this many years ago, the file size of the sRGB image is always slightly larger. Of course, for this comparison, the browser must be color-managed - I have no idea if that's standard in all common browsers by now. My firefox does ithis in default mode. Incidentally, the difference between sRGB and Adobe RGB isn't visible on Facebook (just tested it).

Since I also sell my images through stock photo agencies, I even have to develop them in Adobe RGB. Converting to sRGB for the web takes me exactly 2 mouse clicks.