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jpeg resolution conundrum

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Joseph Wider
jpeg resolution conundrum
on Jul 29, 2011 at 5:25:54 pm

I'm working on an archival documentary of a retired architect that utilizes a lot of his photos. He is a Mac user, views his photos, all jpeg's, in iphoto.

When I went to conduct preliminary interviews and pull photographs from his vast archive, I noticed that in iphoto I was able to zoom in to a close-up of his face and there was plenty of resolution and it looked relatively sharp.

When I got back to my office with the raw jpeg's (that were the untweaked digital camera originals) and looked at them in Photoshop CS3 on a PC. Zooming into the same photos, the resolution wasn't there like it was in iphoto.

Does Mac use a different jpeg decompression codec in iphoto? Is it available for use on a PC?

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