Here is a crop of 28mm at F5.6, a really tiny crop (100% pixel size of 21MP
sensor).
http://www.accura.com.hk/temp/IMG_5203.JPG
and 300mm F5.6 full image resized:
http://www.accura.com.hk/temp/IMG_5202.JPG
Both were taken at same camera position.
I might did it wrong, is that what you mean?
C.H.Ling
----- Original Message -----
From: "Ken Norton"
> >
>> You mean the DOF will be the same for a 25 and 300mm lens at same
>> shooting
>> position, aperture and subject distance? It is hard to believe.
>>
>
> Yes, if you crop the image from the 25mm lens to the exact same framing as
> the 300mm image and then print or display them at the same size.
>
> That's my argument and Ctein seems to be saying otherwise.
>
> AG
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