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Nikon DSLR Cameras
D7100
LCD review on long exposures
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<blockquote data-quote="aroy" data-source="post: 337166" data-attributes="member: 16090"><p>As explaind it is the "Dark Frame"., that is a second frame with shutter off. You will be better off if you do the dark frame your self. Turn off the noise reduction, and after the shot take a second shot with lense cap on. Then use software to do the noise reduction. It has two advantages</p><p>. The main shot gets over in say 10s, so if any thing happens after that will not spoil the shot.</p><p>. Normally off camera dark frame subtraction is better as you use a powerful computer with advanced software, and not left at the mercy of the camera.</p><p></p><p>Another method of getting better noise figures is to take a number of shots at shorter interval and then merge them in software. For example instead of taking one shot for 10 sec, take 10 shots at 1 sec interval or better still 100 at 1/10 sec intervals. Please scan the net for an explanation of why 100 shots are better than 1 shot, even though they are of the same cumulative duration. You will also get free software to merge the shots and reduce the noise.</p></blockquote><p></p>
[QUOTE="aroy, post: 337166, member: 16090"] As explaind it is the "Dark Frame"., that is a second frame with shutter off. You will be better off if you do the dark frame your self. Turn off the noise reduction, and after the shot take a second shot with lense cap on. Then use software to do the noise reduction. It has two advantages . The main shot gets over in say 10s, so if any thing happens after that will not spoil the shot. . Normally off camera dark frame subtraction is better as you use a powerful computer with advanced software, and not left at the mercy of the camera. Another method of getting better noise figures is to take a number of shots at shorter interval and then merge them in software. For example instead of taking one shot for 10 sec, take 10 shots at 1 sec interval or better still 100 at 1/10 sec intervals. Please scan the net for an explanation of why 100 shots are better than 1 shot, even though they are of the same cumulative duration. You will also get free software to merge the shots and reduce the noise. [/QUOTE]
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Nikon DSLR Cameras
D7100
LCD review on long exposures
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