On Fri, Sep 20, 2013 at 5:25 PM, <usher99@xxxxxxx> wrote:
> It is relevant to any listee using OM
> 5D (c, II, or III) as digital back for OM macro lenses or indeed on OM
> as I plan to do.
>
Relevance acknowledged. Paying attention.
> A bit more investigation shows that at pixel width "p", angular
> velocity of cam w, one pixel blur should occur at shutter speed of p/(f
> *w). No?
> Thus shutter speed required for a given blur is proportional to 1/f
> where f is the focal length. Magnification makes this more complex but f
> never drops out. Am getting to the 85% certain confidence level. This
> is either correct or not , there is no in between.
>
Could you plug in some numbers maybe? An example would help me. Are you
proving the old rule that a "safe" shutter speed is 1/f, refining it, or
disproving it?
Thanks.
Joel W.
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