Art.–Nr. SKY-UWA-15
Skywatcher Ultra Wide Angle 15mm
Sharpness:
Very good sharpness within 50° apparent field of view, but gets worse
close to the edge.
x-axis: distance from optical
axis in °, y-axis: resolution in arc minutes
Apparent Field of View:
The apparent field of view is approx. 62°.
Contrast:
Very good contrast.
Aberration:
Very slight cushion distortion.
Eye Relief:
Comfortable.
Mechanical Quality:
Good quality with foldable rubber eye cup.
Summary:
If you are satisfied with 50° usable field of view - fine eyepiece. The
eyepiece is recommended for use with F/5 or slower optics.