70mm Series F276 F280 F330 F700 F900 Lens Cemented Lenses for Refracted Astronomical Telescope Objectives(73F276 Green Film)

Description

• Diameter: 72/73mm. Optical System: Refraction.
• Material: K9 Glass. Focal Length: 276-900mm optional.

Material: K9 Glass

Diameter: 72/73mm

Focal Length: 276-900mm optional

Optical System: Refraction

Surface quality: 60/40

Structure: Two pieces lenses glued

Package includes:

1PCS Doublet Lens

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