TS Wide Angle 30mm
Very good sharpness, resolution just a little bit less 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. 60°.
Very good contrast.
Noticeable cushion distortion.
Nice quality with foldable rubber eye cup and grip coated body.
A recommendable 2-inch eyepiece, which also at F/5 allows to use 75% of the field of view without aberration. The apparent field of view is less than given by the manufacturer.