S100fs blurred photo's help

Started Oct 27, 2008 | Discussions thread
Kim Letkeman
Kim Letkeman Forum Pro • Posts: 33,428
Re: Ted ...

Lloydy wrote:

... Question ?

Is it really a case of f4 x 4 (crop factor) ? Does this also mean
that a crop factor of 1.5 means you 'times' by 1.5, etc ?

I would be interested what your thoughts are if you do get a chance
to look into it.

The answer is yes, and this has been posted many times by several people. The crop factor affects field of view and depth of field proportional to the factor against aperture and focal length.

So a lense at 100mm and f4 on an APS-C sensor has FOV equivalent to 150mm and DOF equivalent to F6 on a full frame sensor.

http://www.kenrockwell.com/tech/crop-factor.htm

Scroll down to "For Hackers" ...

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