Art. –Nr. SKY-PL-06.3
Skywatcher Ploessl 6.3mm
Sharpness:
Sharpness is good, also at the edges. The center is definitely not as sharp
as the surrounding 10° field of view.
x-axis: distance from optical
axis in °, y-axis: resolution in arc minutes
Apparent Field of View:
Field of view is approx. 48°.
Contrast:
Good, but not very good.
Aberration:
Slight cushion distortion. Not really a drawback.
Eye Relief:
Short eye relief, but despite that the look into the eyepiece is
comfortable.
Mechanical Quality:
Simple, but not bad. Without rubber eye cap. The filter thread is not
blackened.
Summary:
This is clearly an eyepiece in the lower price range. However, beginners
may use it without too much loss in optical performance.