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Old Jan 29, 2003, 1:44 AM   #11
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dreaming? no I dont think so..... wishing maybe

This came up when I was reading a new book I have about printing to inkjets and papers. It recommended 24 bit color and I didnt know what my color depth my Nikon 5700 camera was. Now I know.

However even a $350 Epson 2450 scanner scans in 48 bit color and
I am surprised that technology that produces a 5 MP camera cannot do better than 12 bit color. Much less more expensive pro cameras.


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Old Jan 29, 2003, 8:39 AM   #12
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Jim

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However even a $350 Epson 2450 scanner scans in 48 bit color and I am surprised that technology that produces a 5 MP camera cannot do better than 12 bit color. Much less more expensive pro cameras.
48-bit is actually 3x16-bit (interpolated 12-bit, if you are lucky!). We all know how scanners are rated. Not the least of which they are line sensor, ie one line @ a time! very much like TV. Would you wait for the 5700 to scan a minute worth of picture (I'm sure you like 1/4000s better)? Another reason they cost $350 is your PC is doing all the work! You basically buy an overpriced shell brand with a sensor on a guide rail... which is also true for printers which work the other way around.

Have you got good result with any scanner? I'll take the 24-bit of the 4500 over the scanner 48-bit anytime, but I'm verry happy with my 12-bit! :lol: :lol: :lol:
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Old Jan 29, 2003, 10:05 AM   #13
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NHL

I agree about the differences between scanners and cameras. It's not exactly a fair compareson. But I'd add that the other reason to take the 4500 is that it's smaller and weighs less too! And how do you get the bird to stand still to scan it?

All

After my failed quest to find the CP4500 manual earlier, I poked some more. I was able to find a version of the manual online in the nikon-euro site. Good luck finding it on the us site! The link is:

ftp://ftp.nikon-euro.com/download/E4500

In that directory are a few PDFs, including the manual. Its 7.6MB. I downloaded it (gotta love cable modems!) and searched around a bit. It didn't say if it was 24-bit or not. In fact, it didn't say anything about bit-depth at all. Sigh. To me, 24-bit is something to be proud of!
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Old Jan 29, 2003, 10:42 AM   #14
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eric s

What about the 12-bit folks. Aren't we proud too? I know I am as well as a few 5700 owners... May be someone should check their Exif.

-> 36-bit color (3 by 12 bits/color) which is what the CCD is rated for.
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Old Jan 29, 2003, 3:09 PM   #15
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A recent picture I took with my 5700 has the following EXIF data;

2560x1704 image

Original Colors: 16,7 Millions (24bit)
Current Colors: 16,7 Millions (24bit)
Number of unique colors: 197280

You can see a big difference between 16 and 24bit on your computer screen settings...imagine a 12bit image !? Yuck.

Besides...look at your pictures, you can tell they are not 12bit and that they look every bit (no pun intended) as good as a film SLR.
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Old Jan 29, 2003, 6:51 PM   #16
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That is interesting. What format were did you shoot the photo in?
Jpeg, Tiff or raw?

When I looked at dpreview it lists as 8 bit mode in Tiff and 12 bit in raw mode.


http://www.dpreview.com/reviews/nikoncp5700/


It might make sense if they mean 8 bits per channel (RGB)
and 12 bits per channel. That would be great! But why do they keep it a secret if that were so? Be nice if Nikon shed some light on this subject.




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Old Jan 29, 2003, 6:53 PM   #17
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Hi Jim,

I shoot 95% of my pics in Fine JPG mode, 2560x1704 (3:2 ratio)
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Old Jan 29, 2003, 9:21 PM   #18
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FYI

There seems to be a confusion between a camera 12-bit/channel CCD and the actual output a picture pixel on a monitor @ 24-bit:
http://forums.dpreview.com/forums/re...essage=4286569
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Old Jan 29, 2003, 10:40 PM   #19
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No, I dont think so NHL. I can set my monitor to several modes including 16 colors, 256 colors, 16 bit color and 32 bit true color.

It was just an example, how bad 8 bit color (not per channel) would be.

Thanks for the referance however.

I may call Nikon and see if I can get a confirmation that the Nikon 5700 is in fact 8/12 bits per channel. If it is so I think 24 bit color
is satisfatory.

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Old Jan 29, 2003, 11:03 PM   #20
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Personally, when it comes down to it I really don't care what the numbers are I care about what my eyes see. All the pictures I have taken are true color (24bit +) ...both my monitor (set at 32bit) and prints show nothing less in quality than the real thing.

I really want to know the issue here...someone tell me
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