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question for the digi guys
Old 08-19-2003, 07:02 PM   #1 (permalink)
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what's the minimum file size i need to make an 8 x 10? the lab i use offers the following scans:

up to 6MB
6-20 MB
21-40 MB
and so on...it goes up to 81 MB or higher.

they use an imacon 848.
 
 
Re: question for the digi guys
Old 08-19-2003, 07:13 PM   #2 (permalink)
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I'm a newbie photographer but an educated graphic designer and I'd say right at 20MB would give you print quality (300dpi) at 8x10.
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Re: question for the digi guys
Old 08-19-2003, 07:16 PM   #3 (permalink)
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If that's the largest print size you want then you want a 21 meg .TIF file. That will give you 8 x 10 at 300DPI which works out to 2400 x 3000 pixels and is just fine for printing. Remember though, as soon as you start to enlarge the print size past that you start loosing details and sharpness. The extent to which you elarge and the amount of detail lost is a personal prefence issue as far as I'm concerned.

Enjoy!
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Re: question for the digi guys
Old 08-20-2003, 03:30 AM   #4 (permalink)
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First off, those are file sizes, not resolutions. Are these TIFs? Compressed on Uncompressed? Makes a difference....

Now I'm prolly gonna get slammed for this, but it's from someone who's been working with digital files for over 5 yrs now. This is kinda like asking which camera format will produce an acceptable 8x10....35mm, 645, 6x7, 4x5, etc. It's in the eye of the beholder.

Based upon a 300 dpi magic figure, many digital cameras can barely produce an acceptable 8x10, let alone 11x14s. Yet I have seen incredible 11x14s from 3mp cams, at well under 200 dpi.

I did an experiment just a coupla weeks ago, after reading about a guy using the same cam I do. My Fuji's RAW file outputs to 12mp, 6mp, 3mp and 1.5mp file sizes. So that's exactly what I did....burned them to a CD, and I printed each one on a Fuji Frontier @ 8x10. And you know what? Not I nor any person I showed them to could tell them apart, including 3 pro labs! The Frontier is optimized for 200 dpi, and it's by far the most popular digital photo printer in use in the US.

In the end, ask the lab what they recommend for acceptable 8x10 quality. I'll bet it's near 200 dpi, and I'll also bet you'll be delighted.

Just my 2˘ worth....

David
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Re: question for the digi guys
Old 08-20-2003, 09:07 PM   #5 (permalink)
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Are you coming from a 35mm or 120mm film? There's lots of questions you need to answer, but even a 4 meg .jpg can deliver a nice 8x10. File size isn't everything. My Fuji S2 creates a 300 dpi 9x14 4.1 meg .jpg file that you can then save as a .tif or .psd that is huge.

Anything at over 200 dpi will print wonderfully given the photo is "at size". For example, you want to make a 24x36 image, you'll want the image to be 200 dpi, 24"x36". If the DPI is more, so much the better. I've had graphics people tell me that 150 dpi "at size" is enough. Experiment and let us know, but I guarantee that 200 dpi "at size" will do just fine for whatever you're printing, given a good printer.

james
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Re: question for the digi guys
Old 08-20-2003, 09:33 PM   #6 (permalink)
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My Canon 10D large jpg comes out at 180dpi and I have no issues with printing straight to my printer (epson 2200) at an 8x10. In fact the image from the camera is 11 x 17 .
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