Photography
Jon_B's user avatar
Jon_B's user avatar
Jon_B's user avatar
Jon_B
  • Member for 3 years, 2 months
  • Last seen more than 2 years ago
  • Greenbelt, MD
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About

Retired IT person (CP/M, DOS, Windows, xNIX, S/370, multilingual in FORTRAN, C, Pascal, ALC and various shell scripting languages) now photographing for the National Air & Space Museum. "We also walk dogs."

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All Questions Answers
Score Newest
answer
4
Panoramas with a Ball Head
Jul 14, 2020
answer
2
Why is there an air gap between lenses and digital sensors, as opposed to continuous glass-like higher refractive index?
Oct 24, 2020

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