taking the red out
Posted 15 May 2002 - 02:08 AM
Posted 15 May 2002 - 05:00 AM
Then again, if the shot doesn't have enough red in it to begin with, you aren't going to have much luck adding more later. Photoshop doesn't generally "know" where to put the red pixels. Have you ever noticed what happens when you auto-level a shot w/ a lot of water in it? The water turns purple, right?
Dual Ikelite Strobes
Photo site - www.reefpix.org
Posted 15 May 2002 - 05:14 AM
Posted 15 May 2002 - 08:29 AM
There are lots of sample shots with it, on the ikelite web pages.
It is probably too much filter, in the top 20 or so feet of water, (clear water that is), and probably not enough, below 50 or 60 feet.
That is why most people end up bring artificial light down with them. To get consistent results, at varying depths.
I do not believe that levels or auto levels does any sharpening. But it can dramatically increase contrast, which may fool the eyes into thinking it is sharper.
In general, autolevels frequently way over does the adjustment. I found a great photoshop plug in, for adjusting colors, by clicking on various spots in the image, and telling it, "this should be neutral, that should be sky blue, this should be skin", etc.
It is called icorrect professional. Web site here:
For general color adjustment, when
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sony V3/ikelite/DS-51/Heinrich DA2 slave
Posted 15 May 2002 - 12:02 PM
- create a new layer for manual level adjustment and play around with red.
- create a new layer for selective color adjustment and play around with reds and greys. Making red and grey colors a bit less cyan (i.e. adding red) often does the job.
For better control of the outcome select and deselect the layers.
BTW: My Photoshop is german, i hope i translated the menus/commands in a way you can recognise them)
Posted 16 May 2002 - 02:47 AM
Sea & Sea strobes
Posted 18 May 2002 - 07:49 AM
I recently talked to an engineer who studied some stuff with light wavelenghts etc. and is also an underwater photographer. He suggested to use the manual white balance of the camera and told me that it should make the use of a filter obsolete. About whitebalancing you can find some user experiences in ** this thread ** I recently started at the forum.
Hope that it helps a little... ;-) .oOo. Andi
market overview of the essential equipment for digital uw photography