Founder of http://t.co/IwPh1oq5 , Visualization Producer at JPL. This is not an official NASA twitter account. Opinions and views expressed are my own.
1510 days ago
M31 - Canon 7D + F1.4 50mm - ISO400, 10sec
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Rather strikingly vignetted! Wonder why? Wouldn't expect that from a 50mm.
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