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DAVE PRICE - 19 Jul 2006 22:59 GMT

http://djmp.co.uk/slr%201/bridge.htm
Pix of the old Severn crossing

DAVE Price
Bristol UK

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Mark Dunn - 20 Jul 2006 15:16 GMT

Lovely.
A really obvious question; I've really no idea.
Does a DSLR actually photograph in B/W so you can use, say, a red filter as
you seem to have done for this, or is this essentially a greyscaled colour
photograph through a polaroid?

> http://djmp.co.uk/slr%201/bridge.htm
> Pix of the old Severn crossing
>
> DAVE Price
> Bristol UK

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Stu Carter - 20 Jul 2006 16:18 GMT

> A really obvious question; I've really no idea.
> Does a DSLR actually photograph in B/W so you can use, say, a red filter as
> you seem to have done for this, or is this essentially a greyscaled colour
> photograph through a polaroid?

My EOS 20D will take black and white shots. It will also simulate a filter
in-camera. However, because it has a colour sensor, I'm better off taking
a colour shot and using the PS channel mixer to get exactly the effect I
want.

This tutorial gives an idea of the concept:

http://www.luminous-landscape.com/tutorials/b-w_better.shtml

Cheers,

Stu

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Trev - 20 Jul 2006 16:52 GMT

> Lovely.
> A really obvious question; I've really no idea.
[quoted text clipped - 7 lines]
>> DAVE Price
>> Bristol UK

All digitals do, The sensor only measures the luminance. They use an
uneven mix of red green and blue filters to work out how much colour there
is and where then make a good guess.

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SL - 20 Jul 2006 19:22 GMT

Hi Dave,

Very nice picture, though I do find hedge at bottom distracting, I'd cut it
out.

Would also be nice to get person on the jetski going through the shadows
underneath the bridge to maybe add a little more interest & break up the
tones.

Out of curosity what lens did you use & hope you don't mind my minor
critisism (I'm no expert & would like to take similar images, though being a
lazy sod probably does'nt help).

Cheers,
Stephen.

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