On Aug 22, 2007, at 7:53 PM, Cory Papenfuss wrote: > I'm ignorant of these issues. I'd imagine the CCD's are more > difficult to read out this way than CMOS sensors. One doesn't need > anywhere near full resolution to display on the LCD.
I don't know what these distinctions would be in that regard ... I not an imaging sensor designer. I would not presume that you can run a partial capture or what the specifics of writing drivers for the sensor readout would be. But I know one thing from long experience with product development: whenever a software engineer waves their hands and says "it's a simple problem", it will involve serious work by a team of engineers to fix the problems and make it work. >> then there is all the mechanical coordination required for a DSLR to >> manage the iris/mirror/shutter/exposure sequencing, > It's the same mechanical coordination required for shooting normal > shots. I dont' see why this is any more mechanically complicated > than two > shots in a row... the first one a few seconds and the second one > normal. > on top of the Not quite the same, Cory. For operation of the current DSLRs, the cycle of activity starts with the mirror down, sensor initialized and ready to go. For a Live View mode, the shutter has to be closed, the sensor reset to the capture mode, and then the exposure cycle started. If in continuous capture mode, the shutter is cycled as normal and then, at end, the sensor is reset to the real time capture mode, the shutter reopened, etc etc. There are also implications regards the focusing system and several other possible system interactions involved. There are both hardware electronics and mechanical implications to all of this. It's not "... just programming ..." as you casually suggested. Nor is it free. Godfrey -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
