tag:blogger.com,1999:blog-16327517.post8102048850814937600..comments2024-03-26T19:19:35.144+00:00Comments on Eolake Stobblehouse thoughts: iPhone shutter effectEolake Stobblehousehttp://www.blogger.com/profile/07126147415891586345noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-16327517.post-27081207726940383192011-01-30T02:06:30.633+00:002011-01-30T02:06:30.633+00:00But that is exactly what "rolling shutter&quo...But that is exactly what "rolling shutter" is.<br /><br />Here's an analog example.<br /><br />Take a contemporary film camera. It has two curtains to the shutter, one drops open, then a short time after the second drops closed.<br /><br />Now have the shutter take 1/128th of a second to fall. Let the two shutters be started a micro second between. (don't get into all that diffusion on point source of light).<br /><br />Use a very fast film. Now the shutters take many slices of photo, and composite them together.<br /><br />The electonic film, the sensor does this. It samples one line of pixels at a time, and writes them out to the memory.<br /><br />You have efectively taken what 1000 pictures 1 pixel by sensor width and stitched them together.<br /><br />http://www.youtube.com/watch?v=T055cp-JFUA&p=7476C02CE09509DBAlexhttps://www.blogger.com/profile/11434318898333768620noreply@blogger.com