Test Result

 

Art. –Nr. SKY-Zoom-8-24

Skywatcher Zoom 8 – 24mm

 

Sharpness:

Very good at 8mm, also close to the edge. At 24mm just a bit more than half of the field of view is really sharp, close to the edge (10% of field of view) is blurry.

 

x-axis: distance from optical axis in °, y-axis: resolution in arc minutes

 

 

Apparent Field of View:

The apparent field of view is approx. 64° at 8mm, but to be viewed in total only if you move your head. At 24mm is is going down to 36° only.

 

Contrast:

Very good contrast over the complete zoom range.

 

Aberration:

Pincushion distortion is noticeable at 24mm and somewhat less at 8mm.

 

Eye Relief:

Comfortable. At long focal length the field of view is moving in the outer parts when turning the head. This effect is normally known from Kellner-type eyepieces.

 

Mechanical Quality:

Nice quality with foldable rubber eye cup and grip coated body. However, the zoom mechanics has a little bit of play.

 

Summary:

Contrary to most zoom eyepieces the optical drawbacks of this zoom are in the long focal range. At short focal length you get a nice wide angle eyepiece with really good optical performance.

 

 

zurück