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Sharpness question on T2i

Started Aug 1, 2017 | Discussions thread
OP billthemountain Junior Member • Posts: 27
Re: Sharpness question on T2i

At this point, trying to figure out the focus, I would suggest using AV at f/8 with auto ISO and see what you get. In daylight, I doubt the camera will boost the ISO that high, and I'd worry about that last.

I like this advice, thank you.  Am I being too cautious with 1/320?  I mean, I don't have a steady hand, but am I over compensating?  What is the average shutter speed for a 100mm lense.  I always heard it was best to match the lense focal range.  So a 100mm lense is 1/100mm.  But I also heard to never go under 1/300.  So I really don't know what the best practice is.

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