SUNSET: 
Astrophotography: Tips & Techniques
Demystifying Flat-Frame Calibration
Many astrophotographers skip flat fields because they seem complicated. But the flats can greatly improve your images — here's how to do them.
vignetting
Astrophotography: Tips & Techniques
Many astrophotographers skip flat fields because they seem complicated. But the flats can greatly improve your images — here's how to do them.
By: Richard S. Wright Jr. June 17, 2021
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