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DPChallenge Forums >> Hardware and Software >> Technical help needed to diagnose focus issues
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 08/14/2005 12:18:34 PM · #1
This is a 100% crop from my 16-35. What's with the focus? I've been shooting rodeos and have noticed that the focus on this lens (and a little bit on the 80-200) were a little 'ghosty' yesterday. Could this be a result of a dirty sensor or lens? What are your thoughts?

I'm going out again today and have dusted and cleaned my lenses...we'll see what happens. Your diagnosis is greatly appreciated!

100% crop, original file:


Message edited by author 2005-08-14 12:19:20.
 08/14/2005 12:38:58 PM · #2
Without knowing the other parameters of the shot, it's hard to say. What was your f-stop? What focusing mode were you using at the time? What was the shutter and ISO, etc.

Very unlikely to be the result of a dirty sensor.
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