strehl

Mirror Diameter (inches)	user input
Focal Ratio (f/#)	user input
Focal Length (inches)
Focal Length (mm)
Diagonal (inches)	user input
Central Obstruction (%)
Airy Disk (%)
Strehl Ratio
Focuser Height (inches)	user input
Tube Radius (inches)	user input
Diagonal to Focal Point (inches)
Circle of Full Illumination (inches)
s'
Secondary mirror offset (inches)
Image Size (minutes) on 35mm