On Thursday, May 18, 2006 at 17:27,
Moose <olympus@xxxxxxxxxx> wrote:
...
> I'm not sure I've used a polarizer since I went digital with a film
> scanner. I'm not a big one for carrying a lot of bits and pieces and
> most of what I used to use a polarizer for can be done other ways
> now, and without the loss of speed:
>
> 1. Darkening sky. On a super wide, this doesn't usually work out
> very well, as the angle of polarization of sky light varies with
> angle, so the effect varies across the frame. On the other hand,
> it's easy to get the desired effect in an image editor.
>
> 2. Controlling bright reflections. Often works well for this. Post
> processing is more work, but usually does the job and will handle
> all reflections, not just those with the right angle/polarization.
True for both, but polarisers also increase colour saturation and improve
detail, and you see the
results as you view thru the camera and turn the filter, not after many minutes
in Photoshop.
> 3. Suppressing reflections on water to photograph what's down in it
> or glass to shoot what's behind it. Here, there is no substitute for
> a polarizer except finding an angle where the reflections aren't a
> problem. An editor is no help. Of course, you can just try to work
> with the reflections. I think this shot would be less interesting
> with a polarizer
> <http://galleries.moosemystic.net/GGPark/Flowers/pages/FL36.htm>.
Polarisers work both ways. As you turn them, you will reduce OR intensify
reflections!
tOM
-- Quidquid latine dictum sit altum viditur --
,__@ tOM Trottier
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