Niko, I've forwarded this to my brother. He may even understand it. <LOL> May be a place for a general use, fairly inexpensive, way of checking digital shutter speeds.
Thanks, Jack --- Niko Koskela <[EMAIL PROTECTED]> wrote: > I have built a shutter speed tester like this one: > http://davidrichert.com/sound_card_shutter_tester.htm > > I first found it on an German site, but can´t find that site anymore. > I > have built mine with 3 phototransistors, so i can check the curtain > travel speed as well. Cost less than 10EUR. I have repaired a few > Spotmatics an SV and a KX using this meter. > > Accuracy is quite good enough. When i overhauled my first Spotmatic, > i > needed to get a different high-speed cam from a Pentax repair shop. > While visiting there, i told the guy which kind of meter i was using. > He > said i could visit there to check if my meter was any good. I don´t > remember the exact accuracy of the values anymore, but he told that > if > it was a camera overhauled by himself, he wouldn´t try to make it > anything more accurate. > > Can´t help with measuring the DSLR shutter testing, which was the > original topic... > > Niko > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
