Martin, It sounds like the mirror is the problem and should be fixed or replaced. I've used United Ophthalmic repair for this same repair in the past. He is an old Topcon repair tech, but most important, he has PARTS! 954 734-5605 Cell No finical interest Dennis West _____ From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On Behalf Of Angiolith@xxxxxxx Sent: Friday, April 27, 2012 1:37 PM To: optimal@xxxxxxxxxxxxx Subject: [optimal] Topcon 50VT question Optimists: The mirror to the top port of a cherished Topcon VT is still moving when the digital picture is taken, causing intermittent blurry photos. The delay on the flash seems to be greater on the Polaroid setting, making me think the delay might be electronically controllable. So... does anyone know how to adjust the delay on these beautiful antiques? I would think another 1/10 second would do the trick without being too long for patient movement. I am fairly handy, and have not been electrocuted yet. FYI- We already dampen most of the vibration on the mirror with little springs to help hold the mirror tight against the stop . And no, just using the Polaroid button doesn't work. Thanks for the help. Martin Rothenberg Chief, Operations Angiographics, Inc. 1254 Chestnut St - 3rd Floor PO Box 430 Newton Upper Falls, MA 02464 617-964-5067