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Old May 4, 2003, 12:32 PM   #1
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A digicam with 2mp Prints max size 8 x10" photo of good quality, and any digicam with 5mp can also print max size of 8 x10" (if there is need to print fine and sharp)
Is 2mp is not sufficent rather than 3mp or higher to save money?
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Old May 4, 2003, 1:52 PM   #2
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2mp is the absolute minimum for printing 8x10, but you can't do any cropping. With more MP, you can crop more (all the way down to 2mp again).
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Old May 4, 2003, 3:02 PM   #3
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Mike, can you give me some tips and tricks to get image inlargement having good quality and res for offset printing.
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Old May 4, 2003, 11:16 PM   #4
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What DPI do you want to do with offset printing and how large? I assume 8x10, form your question. I've seen some stuff (my parents run a small mag) and the detail and resolution can be fairly high.
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Old May 5, 2003, 2:53 PM   #5
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Min requirement is 150dpi and the size of image should be 20 x30
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Old May 5, 2003, 6:25 PM   #6
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For an 8x10 I would'nt want to do any less than a 3mp.
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Old May 5, 2003, 8:48 PM   #7
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Quote:
Originally Posted by hamid
Min requirement is 150dpi and the size of image should be 20 x30
That is 13.5 MegaPixels. Upsizing from a 2 MP to that size isn't likely to produce a good image.

But it might - depends on the subject, viewing distance, and the eye of the beholder, so try it and find out. Upsize your image, crop a (e.g.) 4x6" (600x900 pixel) piece, and print it - that will be cheap to try. Just pick the area with the most detail, such as the eyes if it is a portrat.
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Old May 5, 2003, 10:22 PM   #8
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I suppose it depends on the quality of the offset press work that you want to achive.

If you are going to do fairly high quality (high-end magazine) offset press work, you would probably chose a halftone screen with a frequency of around 150 lpi given that you were starting from a continuous tone photographic print. Popular wisdom has it that you need 2x to 2.5x lpi -> dpi which implies 300 dpi to achieve the equivalent print quality using inkjet printing technology. Thus 7.2 Mpixel would be required for an 8" x 10" with no resizing. 2X resize interpolation from a 3.2 Mpixel image would normally be considered satisfactory for this quality print.
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