Photography
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Mattman944's user avatar
Mattman944's user avatar
Mattman944
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  • Last seen more than a week ago
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Retired Electrical Engineer with 37+ years experience.

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All Questions Answers
Score Newest
answer
35
How to capture more stars?
May 26, 2019
answer
9
Black smudges during long exposure shots? What are these called and why are they there?
Jun 10, 2019
answer
9
Why is flash sync speed much slower than flash duration?
Jul 22, 2019
answer
6
What color should I use for the walls and ceiling of a photography studio?
Oct 20, 2019
answer
6
Getting a clear image for a paper with 7.62 mm hole located 50 m away
Dec 29, 2019
answer
4
Nikon D3100 converted to Infrared only takes red pictures
Feb 1, 2020
answer
4
What is a good resolution for text notes (during a lecture or training)
Dec 7, 2019
answer
3
photon counting with a DSLR
Dec 22, 2019
answer
2
Can we prove that the object is not tilted from photo(s)?
Nov 7, 2019
answer
2
How do I determine the light output of LED lights for close-up photographs of indoor plants?
Nov 8, 2019
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Weekly Featured Image: Ongoing Contest
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74
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27
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24
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18
Is insurance company’s preferred auto shop biased?
17
Logic-level transistor not switching

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