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canon 55-250 IS blur edge, anyone?

Started Jan 15, 2009 | Discussions thread
tkbslc Forum Pro • Posts: 17,523
Re: canon 55-250 IS blur edge, anyone?

thien nguyen wrote:

You were shooting at 225mm which is quite a large focal length.
This will give you shallow DOF even at f9.

According to the DOF calculator, on a crop body, say, at 20m away,
the DOF is less than 3 metres and only about 1.6m behind the focus
plane.

So you are implying that the tree is leaning? The top is more than 1.6m farther back than the front? I find that very unlikely.

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