On 6/26/05, AG Schnozz <agschnozz@xxxxxxxxx> wrote:
> Depends on your RAW converter. If the converter allows B&W
> output, leave it off and do the B&W conversion in an editor
> instead. This way you can skew the WB.
Ah I see, not owning any digital cameras myself I wasn't aware that
you'd have the option to not set WB until the RAW conversion. That
seems like a great option then because you'd have the versatility to
play with different WB settings on the same shot and see how they look
when converted to B&W. If you combine that with all the options you
have for converting to B&W you end up with a lot of potential for
experimentation.
> I've tried this with very little success. First of all, you end
> up not utilizing enough pixels for the image so the noise level
> and resolution go to pot. Secondly the interpolator doesn't know
> what to do with entire color array or two with no data.
> Thirdly, auto-exposure will be way off and you will run "out of
> gammut". I'm definitely open to suggestions, but I've tried
> this for a year and a half now on two different cameras with
> disappointing results.
That's what I thought but not having the option to try it myself (see
above) I thought I'd throw it out there. I suspect that a red filter
would be the worst as that would only hit 25% of the pixels. With a
green filter at least you'd be hitting 50% of the pixels. But I can
see how the interpolation would be pretty thrown off. Yellow, being a
mix of red and green might offer the best results but still probably
throws off stuff too much.
> BTW, In looking at the spec sheets for the Kodak sensor in the
> E-1 it looks like a deep IR filter will actually illuminate all
> three color sensors in the array.
I know I've seen some digital IR stuff before, yet another thing to play with.
For myself, I've come to terms with the fact that I am going to go
digital at some point in the future. I imagine it will be for colour
first. For the moment though I'm still enjoying film and will likely
hold onto some film equipment for B&W even after going digital.
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