Test Results

25mm modified achromatic by Meade, about 25 years old

Sharpness:

Very good up to the edges.

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

Apparent Field of View:

Field of view is 39°.

Contrast:

Not convincing. Today’s multi-coatings are clearly better.

Aberration:

-

Eye Relief:

Comfortable.

Mechanical Quality:

Very simple manufactured, e.g. loss of coating (paint) after some use.

Summary:

Astonishing sharpness, but the lack of contrast makes it a not recommendable eyepiece.

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