Originally posted by JamieP How does the crop factor affect hand-held shots? When using the (1 / focal length) minimum shutter speed rule of thumb, do we need to apply the crop factor and use the effective focal length?
Yes. The effect of camera shake is dependent on angle of view, not the actual focal length - focal length is just a convenient stand-in for angle of view in the calculation. And really, it's just a rough approximation. But again, yes, when using any format other than 35mm you need to include the crop factor so that we are at least approximating the same angle of view.