I think it is difficult to tell from a picture what exactly caused the vibration. So exact proof will be hard to get. Reichmann SAYS that the obvious blur that he shows in his pictures comes from shutter induced vibration - but how does he know? It could have been wind, nearby machinery or he himself.
An impact of the first shutter curtain seems hard to believe. If I hand-hold my 6x7, set it to B, pre-fire the mirror and release the shutter I can hardly hear the first curtain being released - and I can not feel it. From my perception, this impact would not cause a Auto 110 to tremble. Sven Zitat von Mark Roberts <[EMAIL PROTECTED]>: > "William Robb" <[EMAIL PROTECTED]> wrote: > > >From: <[EMAIL PROTECTED]> > > > >> I'm a regular reader and occassional contributor to both forums. The > >> shutter bounce vibration nonsense has been debunked numerous times. Read > >> Wheatfield's earlier post. There are some obvious things you can't do with > >> extremely long lenses and flimsy tripods, but when used correctly, the 6x7 > >> Pentax works very well. I've proven that conclusively in terms of my own > >> work. > > > >I think it's time this mysth got debunked once and for all. > >Tomorrow after work, I'll set up a test and video the damned thing. > > I don't really see what "debunking" needs to be done - no one has ever > claimed that the shutter vibration is a problem at all times, under all > conditions, only that the massive shutter of the 67 can cause problems > at certain shutter speeds with long lenses *if certain precautions > aren't taken* (sufficient tripod and head - which some people new to the > 67 system underestimate). Reichmann's site shows the issue clearly and > then specifically shows how it can be totally eliminated with the > correct set-up. You don't really need to duplicate his efforts. > > -- > Mark Roberts > Photography and writing > www.robertstech.com > >
