Field of View Calculators
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Camera Field of View
Format:
Film - 35mm
Film - 645 Medium Format
Film - 4x5 sheet
Digital - Four Thirds
Custom Width:
mm Height:
mm
Optical Instrument Focal Length:
mm
Field of View:
° x
°
Calculations from
Widefield Astrophotography
by Robert Reeves
Eyepiece True Field of View
Magnification Data:
Magnification:
Focal Length: Telescope:
mm Eyepiece:
mm
Eyepiece Apparent Field of View:
°
Actual Field of View:
°
