JohnWT

That's interesting to hear Marsh - I'm just getting into A6500 with 4.33 dome and right now have taken UW shots w the 16 mm Sony w fisheye converter. I also have the 16 mm Sigma 1.4 - what extension do you use for that? I've tried the Sony 16 mm pancake without converter behind the 4.33 dome and it had trouble focusing

I'm just trying this combo now - so far it's been in poor viz but I'm getting reasonable results at about f8

Until recently I shot everything with my RX100 II, including photos that went into our book on Underwater Sydney https://www.publish.csiro.au/book/7868/, and the quality was no issue with the publishers. I'm a big fan of compact cameras - the best camera you can get is the one you are prepared to take with you. I'm delving into mirrorless interchangeable now - A6500 - and so far I feel that both systems have their advantages. RX100 - easier to generally take good pics, better depth of field, better flexibility with a couple of wet lenses. A6500 - better for specialised shots like macro and fisheye, but limited when the wrong subject comes along - on my first two dives with a macro lens I met a seal and a turtle!

Hi all, I'm a marine ecologist and social scientist with a keen interest in photography, nature in general and underwater in particular. I post my pics on Flickr https://www.flickr.com/photos/johnwturnbull/ and my web site www.marineexplorer.org, and have just co-authored a book Underwater Sydney https://www.publish.csiro.au/book/7868/