Angular span: 42 arcsec
TFOV: 0.64° (38.4')
Magnification
81.3x
Focal ratio: f/10.0
True FOV (TFOV)
0.64°
38.4 arcmin
Exit Pupil
2.50 mm
Optimal Contrast
Dawes Limit
0.57"
Rayleigh: 0.68"
Light Gathering
841x
vs 7mm human eye
✓
Optimal planetary & deep-sky magnification range. Balanced surface brightness and detail resolution.