Art.–Nr. TS-SP-09
TS Super Ploessl 9mm
Sharpness:
Good within about 35° field of view. Things are getting worse to the
edges.
x-axis: distance from optical
axis in °, y-axis: resolution in arc minutes
Apparent Field of View:
The apparent field of view is approx. 47°.
Contrast:
Very good contrast because of good multicoating and use of just four
lenses.
Aberration:
Slight cushion distortion.
Eye Relief:
Despite only 9mm focal length comfortable.
Mechanical Quality:
Nice. You do not need more to use it for a long time.
Summary:
Nice, high-contrast eyepiece.