Re: A7s pricing
Posted: Thu May 22, 2014 12:32 pm
Wobbly video is wobbly video whoever does it, apparently professionals who do video know which type of camera, CMOS or CCD is best in a given situation and take the appropriate camera.
Anyway I didn’t notice any violent panning happening, there was some panning but it didn’t look too violent, I think it was the poor light value and the 50Hz cycle time of the lights themselves interfering with the read time of the sensor, or causing some kind of asynchronous feed in the system, have a look at the B&H explanation and comparison of the differences between the CMOS rolling shutter readout and the CCD global shutter readouts. http://www.bhphotovideo.com/c/find/news ... ensors.jsp
CCD designs apparently read the whole sensor all at once while in CMOS the sensor is read from the top down. CMOS sensors are very prone to being ‘flashed’ by high cycle time flashes which can freeze the ‘read’ while it’s in progress, this I understand is mainly a concern with sensors in continuous feed and not in single record mode.
Greg
Anyway I didn’t notice any violent panning happening, there was some panning but it didn’t look too violent, I think it was the poor light value and the 50Hz cycle time of the lights themselves interfering with the read time of the sensor, or causing some kind of asynchronous feed in the system, have a look at the B&H explanation and comparison of the differences between the CMOS rolling shutter readout and the CCD global shutter readouts. http://www.bhphotovideo.com/c/find/news ... ensors.jsp
CCD designs apparently read the whole sensor all at once while in CMOS the sensor is read from the top down. CMOS sensors are very prone to being ‘flashed’ by high cycle time flashes which can freeze the ‘read’ while it’s in progress, this I understand is mainly a concern with sensors in continuous feed and not in single record mode.
Greg