There are a number of comparisons between the Baader Genuine Orthos (BGO) and the Baader Classic Orthos (BCO).
The BGO's often rate a hair better but on the 18mm the BCO seems to rate better. BCO's have a 52 degree FOV. Depends on your preferences for the size of the FOV. I definitely like a wider view but I am not super experienced here so I may change my mind on that. I just got the 18mm Fujiyama so I can post my impressions about that here next clear night.
What focal length eyepiece and scope do you use?
Greg.
Quote:
Originally Posted by Saturnine
For a good planetary / double star eyepiece, it is hard to go past either BGO ( Baader Geniune Orthoscopic) or Fujiyama orthoscopics. Compact design, simple lens configuration, only 40 / 45 deg. AFOV but that helps to concentrate on the subject, with a dark contrasting view.
The TMB "clones" are quite good performers as well, with a larger FOV which may help find and frame the target at high magnifications, at quite a reasonable price considering.
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