noisefree images with multiple exposures Photo Gallery by dierk topp at pbase.com

noisefree images with multiple exposures

the idea:
eliminating noise with multiple exposures

all pics (NEFs) without any modification and sharpening right out of LR
lens: Nikkor 12-24/4 on D200 (see EXIF)

I got the idea from 'Noise and Multiple Exposures' on diglloid:
http://www.diglloyd.com/diglloyd/free/NoiseAndMultipleExposures/Noise_MultiExposure.html

07-DEC-2007

test_multi_exp-1.jpg

picture taken with tripod and normal automatic exposure A (all with 1600 ISO, see EXIF)

this one taken with multiple exposure 4x and released by the timer of the D200 (5 sec. wait - and 4 pictures with 1 sec pause), MLU activated

conclusion:

you only need a tripod AND of course no moving objects:-))

you don't see the 1600 ISO noise any more!!

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07-DEC-2007

test_normal_exp.jpg

picture taken with tripod and normal automatic exposure A (for the test of the noise release by hand, no remote anything), MLU activated

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07-DEC-2007

test_multi_exp_crop-.jpg

100% crop of test_multi_exp.jpg

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07-DEC-2007

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