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Nicolas Hoch wrote:
400 dpi is the highest that still makes sense. There is no photo lab that prints at a higher reolution.
What effort? TIFF is just a file format. It doesn’t make scanning any different.
Usually not. Do scan in RGB though, not greyscale and leave it in RGB. In my tests you get better results from RGB than from greyscale images if you send them to a photo lab.
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Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
in my photo class, we developed black&white prints on multigrade photopaper (no digital camera so far). Unfortunately, most of them were not developed long enough, so they are too bright. I would like to scan the photographs (they are 10×15 inch), adjust brightness, contrast, gamma, etc. in Photoshop PS and then burn them on a CD and have them developed in one of those 1-hour-photo-shops.
My question is: What DPI should I use for this purpose? The default value is 200, but I think this is too low. For Web-purposes I usally choose 72dpi and for other things 300. But if the pictures shall be developed in a photo-shop on professional photo-paper resolution should be as high as it makes sense.
400 dpi is the highest that still makes sense. There is no photo lab that prints at a higher reolution.
Also, do you think it is worth the effort to scan as TIFF instead of JPEG (alter options, more space needed)?
What effort? TIFF is just a file format. It doesn’t make scanning any different.
Are black&white prints from JPEGs from a CD more expensive than color?
Usually not. Do scan in RGB though, not greyscale and leave it in RGB. In my tests you get better results from RGB than from greyscale images if you send them to a photo lab.
—
Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
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