Pancho Hasselbach wrote: > Hi, > > there are leaf schutters for LF that are mounted behind the lens, they > are big, and lightning fast: > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180047904417 > > Pancho
8sec to 1/60th? Your lightning must be steam powered........ > > > mike wilson schrieb: > >>>From: "Jostein Øksne" <[EMAIL PROTECTED]> >>>Date: 2006/11/07 Tue AM 11:53:10 GMT >>>To: "Pentax-Discuss Mail List" <[email protected]> >>>Subject: Stupid Q. about central vs. curtain shutter >>> >>>If it was possible to make a focal-plane shutter like the central >>>shutters in eg. hasselblad lenses, I suppose someone would have done >>>it a long time ago. >>> >>>Does anyone know why this is not a good idea? >>> >>>Jostein >> >>If I understand the concept correctly, the leaf shutter in a lens works at a >>node, where all the light rays cross. Or, at least, as close to that as they >>can. This allows them to be quite small and responsive. If they were at >>focal plane, they would have to be much, much bigger and more complicated. >>This would make them less responsive. I suspect that there would have to be >>some innovative design to make exposure consistent across the frame, also. >>What brought this on? > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
