Extremely tasty BA. Any problems with lasers and the camera sensor?
Col, there isn’t really a problem with the camera sensors. The Samsung S850 is a non-SLR, and has a live-view LCD, so I can see when the camera is overloaded. The lasers are weak (mW), so they can’t fry the sensor. I used to do this kind of photography with a conventional film camera (see my web site ), and I believe it was essential that the camera was an Olympus OM-2N, which measures the scattered light off the film during the exposure. Due to the laser speckle pattern, a sensor measuring off the focusing screen would measure very incorrectly (high or low, depending on the speckles). By the way, the measurement during exposure also came in handy with my high-voltage photos.
Cheers for that BA. Might have a bit of a play with me itty bitty laser pointer. Good tip on the exposure stuff. Thought I’d only be digging out me lovely Minolta light meter if I was doing some more wet film shooting.
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Extremely tasty BA. Any problems with lasers and the camera sensor?
Col,
there isn’t really a problem with the camera sensors. The Samsung S850 is a non-SLR, and has a live-view LCD, so I can see when the camera is overloaded. The lasers are weak (mW), so they can’t fry the sensor. I used to do this kind of photography with a conventional film camera (see my web site ), and I believe it was essential that the camera was an Olympus OM-2N, which measures the scattered light off the film during the exposure. Due to the laser speckle pattern, a sensor measuring off the focusing screen would measure very incorrectly (high or low, depending on the speckles). By the way, the measurement during exposure also came in handy with my high-voltage photos.
– Bernhard Adams
Cheers for that BA. Might have a bit of a play with me itty bitty laser pointer. Good tip on the exposure stuff. Thought I’d only be digging out me lovely Minolta light meter if I was doing some more wet film shooting.