christianloader

And here's 2 more shots at f13 with the nikon 17-35mm at 17mm 1/125 ISO250.

Here's how it looks in the pool: 1/125s, f11, ISO250

Thanks for your help guys! Much appreciated. It seems the Sigma 15mm is the way to go. I'll try out the 17-35 again today and tomorrow, and will shoot at f11+ and see if the corner sharpness improves. Thanks for those links Alex, great stuff.

Hi all, I've recently just upgraded to a Nikon D800 with Nauticam housing. I've only done a few dives with the new rig so far, unfortunately in pretty terrible viz, but have noticed a couple of issues with my wide-angle set-ups: - Nikon 17-35mm, & Nauticam 9" optical glass dome & 70mm ext ring. - corner sharpness is quite poor. - Tokina 10-17mm & Kenko 1.4x teleconverter, with Nauticam mini dome (for the 10-17) & 20mm ext ring - slight vignetting visible at its widest focal length. Is anyone using the same lenses as me but with different dome ports? how do you like the results? Is anyone using a Nikon 16mm fisheye on a D800? How does it compare to a 10-17 with a 1.4xTC? The 2 images attached: Nikon 17-35mm, Nauticam 9" optical glass dome & 70mm ext ring, 17mm, 1/200s, f9, ISO160, natural light. (The 2nd image shows the blur in the bottom-left corner of the 1st image). My general question to any D800 users (ideally, Nauticam users too) is, which wide-angle set-up do you find gives you the best results in terms of corner sharpness? Any advice is much appreciated, Cheers, Christian note to Alex Mustard: i read in a previous D800 post last year you may have written a piece discussing wide-angle lenses and domes for FX cameras? If you have, i'd love to have a read as i'm sure you have the magic answers! thanks.

Hi Leslie, Many thanks for your help, after months and months now i know what it is! :-) It's nice to have identified an unusual shrimp similar to the Harlequins & Tigers, All the best, Christian

great shot Eric, i hope i can find another one of these soon here in north sulawesi.

Hi, It was in the daytime, on an afternoon dive.

Last year i saw these 2 shrimps at the dive site Bolong in Wori Bay, North Sulawesi. They were very small, about 1cm, and found at 5m on flat, open, white sand. I think it's very similar to a Tiger Shrimp (Phyllognathia ceratophthalmus), especially the eyes and the main claws. Does anyone have any better idea about what they are? I'd like to get in touch with a shrimp expert, if anyone can give me a name? Thanks! Christian

Hi Eric, i saw your snapping shrimp in your Komodo video and was very impressed! and such a great video too by the way, it looked like an incredible trip, i wish i could have been there with you all. I just saw my first 2 of these shrimps today in Lembeh, they were in 2 Tunicates next to each other. It looks a little bit different to your one, but i guess they could be the same species. All the best, Christian i couldn't attach the images, but here is a link: http://www.flickr.com/photos/christianloader/6895595299 http://www.flickr.com/photos/christianloader/6895594685