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DPChallenge Forums >> Tips, Tricks, and Q&A >> Underwater shots and post processing
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Showing posts 1 - 4 of 4, (reverse)
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02/22/2005 01:48:05 PM · #1
I've taken a lot of underwater shots with my Canon S30 and housing (down to 100ft / 30m no problems). I had never spent that much time focusing on post processing . . . i didn't really understand how to use layers. Playing around with it, the results are rather dramatic.

Before



Recipe (photoshop elements):
- enhance, auto-levels
- layer, add solid color red layer, opacity 50%
- layer, add solid color green layer, opacity 20%
- layer, merge visible
- enhance --> adjust brightness/contract --> levels, cut out the unused segments on both sides
- filter, sharpen

After



I was just fooling around here, trying to figure out how to use and a good use for layers, but I'm pretty happy with the outcome.

As I've sort of stumbled across this, does anyone have any better way or enhancement/improvement ideas to share or other tricks/tips for underwater shots?

Cheers! Tomzinho

(see more underwater shots HERE - although for most i have not done much editing)
02/22/2005 01:52:48 PM · #2
I actually like both shots
02/22/2005 02:47:58 PM · #3
I have seen your underwater photos and, as a diver myself, let me say you've taken some great shots and been to a lot of great diving spots. However, though I'm not any expert and after many experiments with a Motor Marine II (from Sea & Sea, 35 mm), I'd say your pictures lack a good white balance, saturation and definition (too much grain). The first ones can be fixed (sort of) in post-editing (and it'll be worth it). To reduce grain in your pictures, try an inferior ISo speed (100 or less) when taking the shots; though you'll have less light to work with, they'll definetly improve in definition, especially in macro. In wide, I found 100 Asa to work just fine, even though, in some circumstances, I have to play with the flash and the aperture to decently illuminate the subject and get a deep blue background.
Well, keep up the good work and enjoy your fantastic dives.
02/22/2005 03:06:19 PM · #4
That's very interesting. This is something I'd never tried before, to filter in PS for the cyan of underwater. It's very difficult. Best I've managed so far:



Robt.
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