Test Results

               

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.

 

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