Tom Kline

Looks like a great idea. I bought white fins for the same purpose but they quickly got red stains on them when diving Hawaii. Plus forgetting to snap a pic with them in it. One trick is to have subjects that are not colored such as black or white. One can use the eyedropper tool to read the RGB values in LR and adjust the WB accordingly. Note that UW shots might look a tad more natural if the B value is greater than the R and G values. Try to get them closer to equal for subjects closest to the lens. I do this with salmon that are often black and white in the head area. For example adult Sockeye Salmon have a white lower jaw.

I still have a number of Inon Z220 strobes - now decades old. Never really warmed to the Inon battery compartment design that has not changed. Retras are much better especially the latest models IMHO. As well one has the choice of 4 or 8 batteries. Main disadvantage (esp with second gen Retras) is a dedicated fiber optic design as I use Seacam housings that come with electrical synch cords. The adapter (starting with gen 3) has one advantage and that is one can see if the cable is working by observing the disconnected adapter (one can also look for the light at the end of a FO but FOs are a tad fragile esp for my application so not so great IMHO).

I use the additional 4 batteries largely due to cold water. I have had the signal go from red to green on warming up after an overnight warm up at room temp. Now on holiday travel (first time since pandemic) - not able to use the new strobes due to weather prior to leaving. Merry Christmas!

The AF of my 60 AFS simply stopped working one day so I simply bought a replacement. It was then several years old - bought it right after it came out. My even older 105 AFS still works as new. I do not have an F4 to do the Rockwell test described above but am a bit surprised as the F4 has a very old AF system. I have used both AFS lenses housed under water without major issues for years. Though I have used a D3X and not a D3 per Rockwell.

Now on other computer - a bit challenged here!

It took a bunch of tries with 2 different computers but finallly got logged on! Admin you can ignore my quick note. Same person from wetpixel.