Using sensor reflection was something that occurred to me when first thinking about possibilities. Your good point about electronic shutter accuracy is one that has been born out by those of us who have a bit of history checking shutter speeds.
Jack --- Rob Studdert <[EMAIL PROTECTED]> wrote: > On 29 Jan 2006 at 10:03, Niko Koskela wrote: > > > I have built a shutter speed tester like this one: > > http://davidrichert.com/sound_card_shutter_tester.htm > > > Can´t help with measuring the DSLR shutter testing, which was the > > original topic... > > The set-up above could be used to roughly test a DSLR shutter too. > Using a LED > with a narrow dispersion angle pointed at the shutter through the > lens mount > but not perpendicular to it and setting up the photo sensor to catch > the light > reflected off the sensor glass when the shutter was open should do > it. Though > I'm not sure why it would be necessary as the shutter is obviously > electronically timed and any errors will be noticeable in images > produced. > > > Rob Studdert > HURSTVILLE AUSTRALIA > Tel +61-2-9554-4110 > UTC(GMT) +10 Hours > [EMAIL PROTECTED] > http://members.ozemail.com.au/~distudio/publications/ > Pentax user since 1986, PDMLer since 1998 > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
