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Originally Posted by Wheeler
Duncan, I'll happily stand corrected, but since the crop factor is the result of a smaller effective lens circle rather than an actual lengthening of the focal length, isn't taking the crop into account when working out the shutter speed unnecessary?
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Hi Wheeler,
The crop factor is an effective magnification, as you say, due to the smaller section of the image being projected onto the sensor. This magnification will still affect the extent of blurring caused by camera shake. It makes sense to me to take this into account and the owners manual for my camera also mentions this factor should be taken into account to avoid shake.
There are no hard and fast rules here. If you are happy with the results you get at slower shutter speeds then go ahead and use them. This article was written to try and give people basic advice, a primer. The result you will get will depend very much on what kind of subject you are taking.
Regards,
Duncan