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a Nikon D2X question for the technies
Old 03-20-2005, 10:55 PM   #1 (permalink)
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So I'm reading all the info I come across on the D2X, and there's one thing that stuck out and I wonder about. With my D70 and its 6.1mp, I get about a 5.7mb file size when shooting RAW+JPG mode. According to the D2X specs, a RAW+JPG at 12.4mp will produce a file size of 27+mb. That's quite a jump, more than double, more than even 4x. Any idea what the reason is? Is the D2X providing some benefit or information beyond simply more pixels, or am I missing something?

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Re: a Nikon D2X question for the technies
Old 03-21-2005, 12:14 AM   #2 (permalink)
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That's really interesting.. On my D100, a RAW file produces a 9.8MB file.. Even with that, the D2X file would be 3 times the size of D100.. The D100's file is quite a bit larger than the D70.. I know this doesn't answer your question but it's more to think about..


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Re: a Nikon D2X question for the technies
Old 03-21-2005, 10:17 AM   #3 (permalink)
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I have a D2x and shoot RAW. There is the possibilty of using RAW compression which is nice. I am using a 4 gb card and I get 199 images in RAW only and about 170 with Raw plus JPG. The RAW file saved is 9.9 mb. Not sure why they claim it will be lower.

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Re: a Nikon D2X question for the technies
Old 03-21-2005, 01:44 PM   #4 (permalink)
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I would venture to guess that those are maximum, uncompressed file sizes. It's better to spec the largest possible size and make the customers feel better when they are smaller than to quote a small size then listen to customers complain when their memory cards won't hold that many pictures.

So I guess the phrase "your mileage may vary" is appropriate here.

But that's just my guess.
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Re: a Nikon D2X question for the technies
Old 03-21-2005, 04:26 PM   #5 (permalink)
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I didn't say it was lower, I said it was higher. When you say the RAW file size is 9.9mb, is that the regular RAW file, or the compressed RAW file? I was able to download the D2X manual from the Nikon site, and it says a RAW file alone is 20.7mb on the card, and adding a JPG adds from 1mb to 6mb, depending on the quality & size of the JPG. I saw some mention of a compressed RAW file, but no mention of what that did to the RAW file size.

I know on my Nikon D70, the RAW+JPG file size is about 5.7mb, and oddly enough, the camera tells me I can get 85 shots on a 1gb card. But when I'm shooting, I actually get closer to 170 shots. I don't know why or how the counter could be that far off, but I'm wondering if the D2X does the same thing.

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Re: a Nikon D2X question - answer from Nikon - D70 also
Old 03-22-2005, 02:42 AM   #6 (permalink)
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I asked the question at the Nikon site, here was there answer:


Thanks for your inquiry. The D70 shoots exclusively in a compressed NEF (Raw) format. The D2X is capable of shooting compressed or uncompressed NEF's. By shooting on the D2X in Compressed NEF (Raw) you are decreasing the file size by about 40-50% (which sounds about right for the 9.9mb files your friend is getting). If you have any other questions please do not hesitate to contact us at 1-800-645-6689 (Option 1). We are open 24 hours a day, 7 days a week.


One other thing.... in the D2X manual it saws the UNcompressed D2X RAW file size is actually 20.7mb (not 27 as I said), without a JPG. Depending on the size and quality of the JPG, you can add 1mb to 6mb to the 20.7mb. So that answers a few questions, for now anyway.

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Re: a Nikon D2X question for the technies
Old 03-23-2005, 12:49 AM   #7 (permalink)
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Just wanted to make sure you saw my most recent post on this thread, that better explains the D2X file sizes.

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Andy Pearlman
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Re: a Nikon D2X question for the technies
Old 03-23-2005, 08:50 AM   #8 (permalink)
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Yes I did see it and sorry for the confusion. I just looked a compresed NEF on the card and it ranges from 10 mb to 12.7 mb. When I stated the file size earlier at 9.9 mb that was after processing in Nikon Capture. The variance is to due to complexity of the image. As to the remaining shots counter, that can change based on the subject matter. Complex fabrics will require more space than a gray card shot. At best the counter is a estimation.

I cannot say enough good about the D2x. It is fast and accurate and dream to shoot. The 10.5 mm lens is also very cool.

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Re: a Nikon D2X question for the technies
Old 03-24-2005, 03:09 AM   #9 (permalink)
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OK, now you have me confused. I think I get the varying file size in the compressed RAW format, but what do you mean a 9.9mb file "after processing in Nikon Capture"? I would think that processing a compressed file, would produce a TIF or PSD file that would be much larger. My D70 compressed files start out at about 5.7mb, but become 18mb files when processed and saved as PSD.

Also, a couple questions if I may. Have you tried shooting UNcompressed RAW, and comparing the images between that and the compressed RAW? How would you rate the compressed RAW you're shooting in terms of repro quality as a large image (maybe rez'ing up), compared to other formats you've seen?

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Re: a Nikon D2X question for the technies
Old 03-24-2005, 09:11 AM   #10 (permalink)
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I use Nikon Capture to adjust exposure, sharpen, and correct color balance. I then save it as a NEF from Nikon Capture. I like keeping the NEF because it is 16 bit color and smaller than a tiff. I can also go back and make more adjustments without changing the original file. If I need to do any manipulations, dodge, burn, clone, I do that in Photoshop, then save as needed, usually a tiff.

I have shot the uncompressed RAW and do not see a difference in the quality on screen. Because I have my prints made from 8 bit tiffs or jpgs on a Lamda machine it may be an "apple vs. oranges" comparison. Soon I will try resing up a file, if I can find time to do it.

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