D7100 'streaking'

Started Apr 7, 2013 | Discussions thread
JimPearce Veteran Member • Posts: 9,188
I'll try to be nice here...

There's a world of difference between using a test as a diagnostic tool where there is a problem, and using the test to "discover" a problem. My D300, D300s and D7100 all nail focus on the left in my normal practice - which is 300mm to 700mm at f3.5 to f7.1. I don't have an issue with using this test on a D800 where shooting wide and fast is part of the rationale for the camera - as long as we know that the lens being used is itself well-behaved. But I have a real problem with testing the D7100 at f1.8 with a 35mm f1.8. And who knows how a D3, D300, D700 etc. - all of the previous cameras with a 51 point autofocus - would fare on this test?

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