Many thanks for the clarification (and to Rob, Dag, and others). John
On Tue, 12 Dec 2006 17:28:36 -0000, John Francis <[EMAIL PROTECTED]> wrote: > > Precisely. > > (It can also rotate in the plane of the sensor, around the > axis of the lens, to correct for twisting the camera; this > is something that in-lens image stabilsation can't do. But > this is a much smaller contributor to camera shake; almost > all the corection consists of up/down/left/right motion). > > > On Tue, Dec 12, 2006 at 10:15:05AM -0000, John Forbes wrote: >> So are you saying that the sensor moves vertically or horizontally, or >> both, but remains parallel to the sensor? >> >> John >> >> On Mon, 11 Dec 2006 17:17:10 -0000, John Francis <[EMAIL PROTECTED]> >> wrote: >> >> > >> > The SR is (mostly) done by a translation, not a rotation; that >> > has the same amount of travel for all the parts of the sensor >> > (and does not depend on sensor size). There is no fulcrum. >> > >> > On Mon, Dec 11, 2006 at 11:54:28AM -0000, John Forbes wrote: >> >> The sensor will move through the same angle for any given lens, but >> as >> >> the >> >> APS-C sensor is smaller than a 35mm sensor, the distance travelled by >> >> the >> >> edge that is furthest from the fulcrum will be shorter. >> >> >> >> John >> >> >> >> On Mon, 11 Dec 2006 11:00:23 -0000, Digital Image Studio >> >> <[EMAIL PROTECTED]> wrote: >> >> >> >> > On 11/12/06, Rod Connan <[EMAIL PROTECTED]> wrote: >> >> > >> >> >> The large movement available in the K10D sensor support plate is >> >> >> evidenced >> >> >> by the clearly heard thunk when you tip the camera from side to >> side >> >> >> (when >> >> >> the camera is off) >> >> > >> >> > Scaling and measuring images of the SR mechanism I estimate the >> >> > clearance stop to stop in any direction is very close to 6mm so the >> >> > system could probably accommodate +/- 2.5mm of correction. >> >> > >> >> >> >> >> >> >> >> -- >> >> Using Opera's revolutionary e-mail client: http://www.opera.com/m2/ >> >> >> >> >> >> -- >> >> PDML Pentax-Discuss Mail List >> >> PDML@pdml.net >> >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> > >> >> >> >> -- >> Using Opera's revolutionary e-mail client: http://www.opera.com/m2/ >> >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net > -- Using Opera's revolutionary e-mail client: http://www.opera.com/m2/ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
