Archived posting to the Leica Users Group, 2006/12/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Surely if what you say is true and the shutter is just a dust shield and the actual exposure is entirely electronically gated the highest flash sync speed and fastest exposure would coincide? Frank sorry I am only able to intermittently read posts so may be repeating here. On 28 Dec, 2006, at 17:08, Frank Filippone wrote: > I think you are incorrectly interpreting this sentence..... 'The > number of electrons collected is linearly dependent on light > level and exposure time ...'. It is a pretty basic electronic > theory of integration. The rest of the sentence was more > interesting... ".....and nonlinearly dependent on light > frequency..." ( or so I remember the words...) > > In this case, in my reading, exposure time for the M8 is the open > digital gating timing. ( or could be and is the mechanical > shutter timing on say the M3). > > How does the M8 shutter work at speeds of 1/250 to 1/8000? The > same way it works below that speed... the gates open, the gates shut > for the required timing. You do not need a slit ( or any other > kind of mechanical ) shutter, except for this multiple flash mode > with fast shutter. There is nothing that I have read that states > the digital timing of the sensor array can not operate with a > minimum gated exposure time of 1/8000 of a second.. after all, the > light is pretty bright to use that shutter speed......and amount > of light is all that counts. > > Read the email I will send out later.... It all sounds logical to > me, but you never know what Leica will do / has done, unless you > get to have that open discussion with them.... > > Frank Filippone > red735i@earthlink.net > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information