Art. –Nr. BA-OR-07
Baader Planetarium Genuine Ortho 7mm
Sharpness:
Perfect sharpness over the whole field of view. Especially to the edges
better than our Plossl- and Super Plossl eyepieces.
x-axis: distance from optical
axis in °, y-axis: resolution in arc minutes
Apparent Field of View:
The apparent field of view is about 41°.
Contrast:
Really good contrast, remarkably better as with our Plossls.
Aberration:
Small pincushion distortion.
Eye Relief:
Eye relief is short, as expected. If you do not worry about that, the
look into the eyepiece is fine.
Mechanical Quality:
The very good quality is described on the main ortho page.
Summary:
In comparison to the Super Plossl eyepieces on the cheaper side the
advantage is better edge sharpness, better contrast and lower sensitivity to
reflexes. Its called a fine eyepiece all around, and that is correct.