BINOVIEWER BAADER 60-deg PRISM handmade in Germany 2007.AB+ Condition, beautiful, contrasty optics1x magnification - NO GAIN !!!Custom-Fit Kenko aluminum case for storage and transport17mm clear apertureBest for long focal length Dall-Kirkham or Maksutov. No backfocus extender is needed, but also beautiful in refractors for very low power views.大変 とても 貴重で稀有な ビノビューです !ZEISS E-PL 25mm EYEPIECES -Zeiss Oberkochen E-Pl 25mm super flat field planar orthoscopics are for laboratory microscopes and now 31.7mm sleeve for astronomy adapted.これは、これまで製造された中で 光学的にも最高の 25mmアイピースです。 Exterior = B Grade, Optics = AB GradeOne is c.1995 vintage, the other c.1990, both optically superb, not mechanically identical but merge perfectly.Both focusable for pinpoint precision and diopter adjustment. This is very satisfying.FOV = 50 degrees, FSD = 17.5mmTHERE IS NO BETTER EYEPIECE MADE AT ANY PRICE. New ¥145,000 each!大変 とても 貴重で稀有な レンズです !