Fully coated with layers of MC symmetrical TPL Super Ploessla eyepiece of excellent quality. Aluminum luminaire, purely glass optics, filter thread on the side of the spectacle extractor. A 4 mm focal length eyepiece allows you to obtain the highest magnification, eg with a telescope with a focal length of 1000 mm magnification with this eyepiece is 1000/4 = 250 times. • Focal length: | 4 mm | • Field of view: | 50 ° | • Diameter of binding: | 1.25 inches |
2 years
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