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My most used for eyepieces for lunar & planetary observing the past few years are a pair of 12.5 mm BGOs' , Williams Optics Binoveiwer, 1.6 X nosepiece on an 127 x 1200 Surplus Shed optics, refractor. The approx. 150 X magnification the set up provides is an ideal mag. when the seeing is less than very good ( > 7/ 10 ).
The BGOs', ( Baader Genuine Orthoscopics ) are an excellent eyepiece, sharp to the edge of the field, good light transmission and eye relief of 10 / 12 mm and are similar to the Fujiyama orthos. Also have sets of 18 & 9 mm volcano top orthos when different mag. is required and they are nearly as good in quality of view.
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