Test Results

Art. –Nr. TS-PL-06.5

TS Ploessl 6.5mm

Sharpness:

Sharp within 30° apparent field of view, but not perfect towards 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. 42°

Contrast:

Very good contrast because of good multicoating and use of just four lenses.

Aberration:

Nothing noticeable.

Eye Relief:

Very short eye relief because of the short focal length. Viewing the complete field of view is not possible without looking into the eyepiece under different angles – or fold the rubber eye cup.

Mechanical Quality:

Simple, but not bad. Unfortunately no blackened filter thread.

Summary:

Good and inexpensive Ploessl. Fine for planetary observations.

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