Thanks for Walt's and Winsor's responses.
I think I'm asking a different question than the dynamic range of film ...
which I take to mean the range from dark to light.
What I'm asking is this:
If you have two identical figures (say blocks of wood) that are absolutely
identical in color (say, green).
If you changed the color very slightly of one of them ... and you want the
media (eye, film, digital sensor) to
recognize the difference ..
Do you have to change the color more or less for an eye, or film, or the
digital sensor, to register that the second block is in fact a different
color than the first one? That is, does the minimum amount of color
change for the second block have to be more or less for digital compared
to film, in order to record a difference in the color?
BB
hiwayman@xxxxxxx (Walt Wayman)
Sent by: olympus-owner@xxxxxxxxxx
06/10/2004 02:43 PM
Please respond to olympus
To: olympus@xxxxxxxxxx
cc:
Subject: [OM] Re: A question about color resolution and film vs.
digital
As much as I hate to toot my own horn and call attention to myself (pause
here for the expected guffaws) I think my latest TOPE entry is probably a
pretty fair example of the full range of slide film, which I find more
than adequate in most situations, particularly if exposed correctly.
http://www.tope.nl/tope_show_entry.php?event=18&pic=7
The original, of course, shows even more detail in both shadow and
highlight, and if I had had the Minolta 5400 at the time I made the scan,
with its 4.8 dynamic range, this might be more evident in this example.
Also, reducing the photo to a JPEG size to meet TOPE requirements didn't
help either.
Walt
-------------- Original message from Winsor Crosby : --------------
--SNIP--
> Slide film is criticized because it
> does not have the dynamic range of color negative film because a
> smaller light difference will cause a greater change in value on the
> film. The whole trick is to try and get the extremes in the world which
> your eye has no trouble with reduced down to to 7 or 8 f stops that can
> be handled by the best photomedia.
>
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