>Mike,
>
>you are right, we can start counting when the first diode see the
>light and then stop when the second see the light. For the second
>curtain just reverse the bright trigger to dark trigger (or convert to
>AC pulse trigger then no need to care about polarity). I just haven't
>thought of using very slow shutter speed (or even "B") to isolate the
>second curtain's influence.
>
Why don't you just find a used shutter tester somewhere? Wouldn't that
be easier than building one? If you are familiar with amatuer radio,
they have swap meets here in the US where all kinds of equipment shows
up, not necessarily related to radios. I'm sure that one would show up
at one of the larger meets.
Be seeing you.
Dirk Wright
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|