I would like some opinions as to what the various advantages or disadvantages of filters vs post-processing are. I like to dive with strobes, even in shallow clear water, so that I have the option to use them if I choose for fill light etc. If I commit to an on camera filter then these filters often mess with my nicely balanced colour which my strobes usually provide. I show an example of this when I forgot to remove my Magic Filter from my 10.5 once at Shark Shootout last year.
I then show a couple of before and after examples taken at Sting Ray City of simple post-processing using the white balance tool in Aperture and choosing a white point with the eyedropper tool. These post-processing results look similar to what I may have obtained with a Magic Filter, I think. I would venture that one could obtain similar results or any desired result by simulating the desired colour filter in Photoshop, Aperture etc.
I see two disadvantages of filters; the first is that one is committed for the duration of the dive with any in housing filter, and the other is that a filter by adding another layer of glass / gelatin or whatever will increase exposure and possibly degrade the quality of the image, however slightly. Are filters necessary now that we have Photoshop etc?
Does anyone have any problem with my reasoning, contrary opinions, ideas on advantages of filters over post-processing except for the fact that they can of course save the post-processing step?
Possibly Alex will weigh in on this.
Edited by loftus, 01 June 2007 - 02:09 PM.