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Old 12-28-2007   #10 (permalink)
grsphoto
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Default Re: 580EX II Zoom Range

Quote:
Originally Posted by Jose View Post
What I am trying to say is that the 580EX II claims that it adjust automatically to the digital camera sensor in use but this not appear to be correct. As the size of the sensor in the camera changes so does the focal lens of the camera in use. <snip>
NO it does not! Changing the sensor size does not change the laws of physics. A 35 is a 35 no matter which body you put it on. The sensor size just adjusts how much of the image that the lens produces, gets used. It is a crop factor..ie it is the similar to cropping in tighter on the image.

( note for the techno geeks ( like me) I said similar, not the same, there are some differences in DOF and edge distortion but for 99% of shooters these don't matter, and I don't think they are important in this conversation)

Glenn
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