How come HD was off with the clips?
Also was that with a diopter? Seems the corners were way soft.
Also what housing and port?
I hadn't noticed that the two clips (turtle and triggerfish) that I color-corrected in Vegas were no longer HD. Hmmm...I'll have to check that out.
[UPDATE] Apparently, when I edit (correct the white balance) the MOV files in Vegas, and save them as AVI files, they are no longer HD when I upload them to Vimeo. I've put back the (far too green) original MOV files on Vimeo, so you can at least judge picture quality, etc.
As for corner softness, there are a couple of possible/likely reasons. First, I assume the camera reverted back to f/2.8 aperture. As we all know, wide open apertures like that turn corners to crap.
Second, I was not using the "optimal" port set-up, at least based on Stephen Frink's recommendations, which is a 57.5mm ext. ring with the Seacam Superdome for that (16-35mmII) lens. I was going to save this for a different thread, but in a nutshell, I was using an Aquatica housing (for the first time) with my Seacam Superdome, connected by a special adapter that the Aquatica folks have developed to allow use of Seacam ports on their housings (not sure if the adapter is formally available or not - I have an early prototype). Anyway, that adapter is about 19-20mm thick, so with my Seacam 35mm ext. ring, I had a total of 54-55mm of "extension" (instead of the 57.5mm Steve recommends).
I blame the bad corners primarily on those two things. However, a third issue may have been the way I used a Magic Filter for those two particular clips. Since there isn't a rear filter mount on that lens, and there isn't (as far as I know) a Magic Filter that lens size, I simply taped a Magic Filter on the front of the lens (see attached). That may have contributed to bad corners as well.
Edited by bmyates, 03 June 2009 - 08:30 PM.