Photography
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David the expat sez: "Stack Exchange Rocks!" so, let Stack Exchange be Stack Exchange.

My goal is to spend less time in my "...snow white cube containing only the bare necessities, a computer, and a large library of treatises, maps, and precise scale models*."

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16 Why are the star trails in Richard Angle's photos of a SpaceX launch and landing so non-uniform? Mar 9
9 What is the crank on the side of this lens used by David Douglas Duncan? Jun 9 '18
8 How to estimate pixels per degree for an image from a camera phone using EXIF data? May 26
6 LIDAR burnout; ways to check for damaging infrared lasers before shooting besides looking for posted warnings? Jan 16 '19
5 Are there industry standards or specs for image sensor resistance to damage from intense light? May 15 '16
5 Does changing the ISO of a modern digital camera really change the gain of an electronic amplifier? Oct 6 '17
5 What kind of equipment or other technology is necessary to photograph “sprites” (the atmospheric phenomenon)? Apr 23 '19
4 Why exactly do “CMOS astrophotographers” prefer CMOS sensors? Jul 7 '19
4 Does this telescope only have a 4 blade aperture? May 6 '17
3 A more “professional” contrast curve than y = a*x + b? Jul 28
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