Diameter: 60 MM (actual outside diameter dimensions are: 62 MM)
Focal length: F220 F300 F360 F500 F600 F700 F800 F900
This objective lens has a double separation structure design, which separates the outermost layer and innermost layer of the blue film objective from the blue coating.
The outermost and innermost layers of the separated green film objective are plated with a blue film, and the middle two layers are plated with a green film.
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Shape : Spherical
Usage : Optical
Model Number : Astronomical telescope lens
Material : Glass