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kodiak photo

Montréal, (Qc), CA
734 posts

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"RE: D800EM"

kodiak photo Silver Member Nikonian since 28th Feb 2013
Mon 13-May-13 07:08 PM

*
Hi Bengt,

I feel very comfortable with the argumentation
brought by Rick and the others.

< "I am thinking more of extreme low light photography…" >

Exactly. This is where the collected colour information comes
in the play. In low key condition, the D800E will see very faint
colour shifts because it is not colour blind. A somewhat dark
brown beside a somewhat dark blue or green will be recorded
as such. But in the dark, all the cats are grey! A monochrome
rendition of the D800EM would only see a dark area beside
another dark area…

In the times of B&W films, a better film had simply an emulsion
that was offering more shades of grey: a greater latitude when
capturing colour values and recording them in monochrome
shades. That were millions of colours regrouped in 11 greys!

Then came the chromogenic emulsions, bragging to perform
on a 31 shades of grey base, plus black, and plus white. Wow!
Three times more! That were millions of colours regrouped in
31 shades greys! Now, in the digital era, we are talking about
a minimum of 256 shades of grey! This is still not much beside
the XX millions of recordable colours!

If you record all the colour information, you may, using the six
sliders in the tool box, tweak the way colours are shifted to or
from a given shade (or level) of grey to another.

Even with my beloved Beseler 4x5 colour enlarger and working
with XP1/C41, these performances were beyond my reach.


Kodiak
Groovy Shootings
Image Média
www.kodiakmedia.at


In photography, light is free but catching it is not!
• • • • • • • • • • • • • • • • • • • • • • • • • • • •

A general, generic topic D800EM [View all] , Bengt Nyman , Sat 04-May-13 02:26 PM
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