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<blockquote data-quote="nickt" data-source="post: 491630" data-attributes="member: 4923"><p>What's your shutter speed? Try a as low as possible but fast enough to not get shake if you are hand holding. I don't know anything about the projector, but there is a huge potential for craziness to happen if your shutter speed is too fast. It's sort of like an old tube tv screen which were near impossible to photograph. On the old tv's the image is 'painted' line by line very quickly and our eye just soaks the whole thing it, but a fast shutter speed catches an instantaneous look at the incompletely 'painted' picture.&nbsp; More likely is that your modern device uses pulsed LED's. Similar principal, but higher speed than an old tv. Its probably flashing the red, blue, green consecutively at a very rapid rate painting the picture. Your fast shutter speed catches a random instant of this digital painting. Using a slower shutter speed your camera will catch the whole scene as your eyes see it. It has to stay open long enough for the screen to go through a complete cycle. No idea what that speed would be, but if you should be able to quickly find it. Use shutter priority and start somewhere around 1/focal length.</p></blockquote><p></p>

[QUOTE="nickt, post: 491630, member: 4923"] What's your shutter speed? Try a as low as possible but fast enough to not get shake if you are hand holding. I don't know anything about the projector, but there is a huge potential for craziness to happen if your shutter speed is too fast. It's sort of like an old tube tv screen which were near impossible to photograph. On the old tv's the image is 'painted' line by line very quickly and our eye just soaks the whole thing it, but a fast shutter speed catches an instantaneous look at the incompletely 'painted' picture. More likely is that your modern device uses pulsed LED's. Similar principal, but higher speed than an old tv. Its probably flashing the red, blue, green consecutively at a very rapid rate painting the picture. Your fast shutter speed catches a random instant of this digital painting. Using a slower shutter speed your camera will catch the whole scene as your eyes see it. It has to stay open long enough for the screen to go through a complete cycle. No idea what that speed would be, but if you should be able to quickly find it. Use shutter priority and start somewhere around 1/focal length. [/QUOTE]

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