Feature(may vary by option.)
●Double Adhesive D70F400 Refractive Purpose, DIY DIY DIY Refractive Astronomy Telescope Accessories Popular Science
●Product Name: ACROMATIC Refractor Telescope Objective Lens
●Optical System: Double Adhesive
●Optical Coating: Full surface blue film
●Actual Diameter: 73mm Focal Length: 400mm
[70mm 400mm]
Description
Product Name: ACROMATIC Refractor Telescope Objective Lens
Optical System: Double Adhesive
Optical Coating: Full surface blue film
Actual Diameter: 2.9 inches (73 mm)
Focal Length: 15.7 inches (400 mm)
Diameter Resistance: +0/-0.12mm
Focal Length Resistance: +/- 0.1%
Purpose: The purpose lens of this telescope can be used for scientific collimator. DIY astronomical telescope and other scientific equipment production