1pc 60mm Refractive Astronomical Telescope Objective Lens with Blue Coating - 300-900mm for DIY Telescopes(D60F300)
SizeD60F300
Special Features
- 60mm refractive objective lens devised for DIY astronomical telescopes, enhancing your stargazing experience.
- Available focal lengths of 300mm, 360mm, 400mm, 500mm, 600mm, 700mm, 800mm, and 900mm, providing flexibility for various viewing needs.
- Single-sided blue film coating ensures optimal light transmission and image clarity, resulting in stunning views.
- Precision-engineered with a diameter tolerance of +0/-0.12mm and focal length tolerance of ±0.1%, ensuring consistent performance.
- Includes two refraction double separation objective sets, perfect for both astronomical telescope objectives and star finder applications.
Description
Refractive astronomical telescope objective lens D=60mm
Diameter: 62mm
The focal length F: 300,360,400,500,600,700,800,900 mm Optional
Coating: single-sided blue film
Combined image :1/4-1/8
Diameter tolerance :+0/ -0.12mm
Center thickness tolerance :±0.2mm
Focal length tolerance :±0.1%
Finish :60/40
Eccentric :1'
Note: two refraction double separation objective sets; Used for astronomical telescope objective and star finder.
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