Yes, I did this. Homebrew shutter tester. Some ICs, crystal, 7-segment displays
and a photocell. Works pretty good. It told me that my OMs had very little
shutter error (except the 4t at 1/2000 had a large error ( I can't remember the
numbers)). But it also told me what I suspected ( and what prompted me to build
the thing in the first place): that my lenses for my Mamiya C-330 (all those
lenses have leaf shutters built in) had LARGE error, sometimes up to 50%.
george
R. Lee Hawkins wrote:
> In your message dated: Fri, 12 Jun 1998 10:28:00 MDT you write:
> >>There used to be a way to check shutter speeds by taking pictures of your TV
> >>screen. There is no real home test for shutter speeds except maybe a $5000
> >>shutter tester.
> >
> >Actually Calumet sells an electronic shutter tester for about $80 (or they
> >did a few years ago)
>
> Yes, and you can easily make one from a surplus Commodore 64. Or home
> brew one from components if you are so inclined.
>
> Cheers,
> --Lee
>
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