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Old 07-03-2012, 11:15 PM
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gregbradley is offline
Join Date: Feb 2006
Location: Sydney
Posts: 16,923
Originally Posted by troypiggo View Post
The 50 f/1.8 would be pretty disappointing for astro imaging.
Why do you say that?

Nikkor 50mm F1.8 on SBIG STL11. Its not the best image I have done but I thought the little lens performed quite well and its very very bright for a 30 second exposure.

Its cheap and it has the least amount of distortion, vignetting, pin cushion of virtually any lens. Same with the Canon version.
Virtually no other focal length sells a lens at F1.8 for under $150 that is distortion free and really low vignetting.

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