Video cameras don't have mechanical shutters at all, though. :-) Jostein
2009/5/14 P. J. Alling <[email protected]>: > Electronic control of the shutter independent of the mirror is probably > easier to implement than mechanical control. It wouldn't need tight > tolerances between what are essentially separate mechanical subsystems. I > kind of thought that might already be the case. > > AlunFoto wrote: >> >> No idea if it's possible to make the shutter re-cock mechanism >> independent of the mirror-return mechanism. That's what it reqires, >> though... >> >> Jostein >> >> 2009/5/14 Larry Colen <[email protected]>: >> >>> >>> It seems to me that it should be possible to expand dynamic range by >>> firing off two (or three) frames on the same shutter press. It >>> wouldn't work for sports, but for many shots even the motion in 1/5 >>> second (assuming 5 FPS) would be acceptable. If the mirror is the >>> limiting factor, maybe 1/50 second rather thant 1/5 second between >>> frames would be doable. >>> >>> Especially since a lot of the time when I have rough dynamic range >>> issues, I'm already shooting at something like 1/10 second, so two >>> frames of 1/10 second and 1/80 or 1/160 second would be a good match, >>> and the "stutter" between the two frames would be negligable compared >>> with the blur. >>> >>> >>> -- >>> The fastest way to get your question answered on the net is to post >>> the wrong answer. >>> Larry Colen [email protected] >>> http://www.red4est.com/lrc >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >>> >>> >> >> >> >> > > > -- > -- > > The free man owns himself. He can damage himself with either eating or > drinking; he can ruin himself with gambling. If he does he is certainly a > damn fool, and he might possibly be a damned soul; but if he may not, he is > not a free man any more than a dog. > > --G. K. Chesterton > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
