Quote:

I took some graduation photos over the weekend. Many came out very grainy. I have no idea why or what would cause it.

If anybody knows what the issue is please let me know.

Thanks for any help.
Andrew



Tom pretty much nailed the problem. I am curious about your comment that "many" of them came out grainy. Does that mean some came out OK. I don't know the Rebel XTi but this sounds like either you inadvertently set the ISO to 1600 or there is some sort of "autoiso" feature set that changes the iso to optimize shutter speed. Shooting at f/22 is really asking for trouble. Not only does it require alot of light, but there may be some lens diffraction degradation down that low. You are definitely correct to check your settings.

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