[Elphel-support] rolling shutter or global shutter

[support-list]

Dear Servaas,

Rollins shutter sensors have both advantages and disadvantages compared to snapshot ones, so it is difficult to reply about "good quality pictures". You may find illustrations of the artifacts of the of the high-resolution snapshot shutter CCD http://wiki.elphel.com//index.php?title=File:Image_sensors_and_shutter_related_artifacts.odp (LibreOffice presentation). Rolling shutter works for any resolution sensors (5MPix Aptina sensor we use can go down to ~1/40,000 (one scan line at full resolution).

That said, a strobe flash is better for snapshot shutters as it cancels the snapshot shutter weak spot - poor shutter ratio for high resolution sensors, unwanted light leak to the pixels (or moving pixel charges in case of the CCD) waiting to be readout after exposure.

Andrey

---- On Fri, 11 Oct 2013 02:51:19 -0700 Servaas van Mensvoort - Maxifoto International BV <s.v.mensvoort at maxifoto.com> wrote ---- 


Dear Sir/Madam


I would like to know if the NC353L-369 can make good quality pictures of moving objects.
Similar to a simple consumer camera at shutterspeed 1/1250.
I'm planning to use a strobe flash.
Will the rolling shutter be able to make a good picture or should i search for a global shutter camera?



Kind regards,
 
 S. van Mensvoort 





 
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