Hi!
On Tue, 31 Jul 2001, Robert Meier wrote:
> Also AFAIK the D30 only allows raw, jpeg fine, and jpeg normal with 2
> different resolutions for jpeg. jpeg does allow only 8-bit input
> samples (for baseline). But the D30 has 12bit/channel, I believe. So by
> using jpeg instead of raw you lose 4 bits. The camera might make
> already some adjustments and take advantage of the 4 bits but certainly
> not to an extend as you could in a software tool on the computer. This
> is another reason not to use jpeg if you want to get the best out of
> your D30. This of course assumes that the conversion of raw to
> [tiff|psd|..] keeps all 12 bits or at least allows you do adjust
> curves, etc before converting it to the new format. How does that
> actually work with the D30?
Did you see yet the info in
http://www.dpreview.com/forums/read.asp?forum=1019&page=5&message=950209
Currently it seems that the camera only saves 10 bits in to the CRW file!
I hope it will not turn out so that they did the same thing as with the
first scanner 2700. If I recall correctly, it was a 10-bits/channel
scanner that would give out 8bits/channel. But if one read the specs
correctly, it gave out "8 bits dithered as 64 tones"... so actually it
gave out a file with 8 bits of data, but with 6 bits of information.
Thankfully the newer 2710 is totally a different beast, and a very good
scanner. But untill the compressed/encrypted data part of CRW is really
deciphered, I'm not sure if will know for sure. Currently it looks like
D30 gives out 10 bits - which of course is still better than 8 bits in the
Jpeg!
Best regards,
Hugo.
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** Hugo G�vert **
** [EMAIL PROTECTED] http://www.hut.fi/~hugo **
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