Objective diameter:  50 mm
Magnification:  10 x
Exit pupil: 5 mm
Eye relief (acc. to spec): 20 mm
IPD:  56 – 74 mm
RFOV:  6.5  degrees = 114 m
Focus type:  IF
Prism system:  Porro I
Waterproof: yes
Weight (measured, with eyepiece cover and strap): 1‘418 g
Made in: China


This binocular competes head-on with the well established and iconic Fujinon 10×50 FMT-SX2 (see separate post), which over the years has obtained “cult status” among hobby astronomers because of its bright, flat image with excellent edge sharpness. The APM 10×50 ED succeeds the Lunt Engineering MS 10×50 (see separate post) and has improved optics (ED glass), but otherwise identical specifications.



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