DIY Refraction Sstronomical Telescope Doublet objective lens 154mm Focal 750mm For Sale
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DIY Refraction Sstronomical Telescope Doublet objective lens 154mm Focal 750mm:
$284.95
Refraction astronomical telescope double objective lens set 154mm DIY self-made
Suitable for primary lens diameter: 100-200mm Astronomical telescope optical system: refraction Lens Diameter: 154mm, Effective diameter: 150mm Attention: 2pcs lens makes a objective lens group. Package includes: 2pcs lensper quantity
objective lensD=154mm F=750mm multilayer blue film diameter 154mm focal length 750mm Coating Four-sided multilayer blue film Combined image quality 1/4-1/8 Diameter tolerance +0/-0.12 mm Center thickness tolerance ±0.2mm Focal length tolerance ±0.1% Finish 60/40 eccentric 1\' objective lensD=154mm F=750mm multilayer green film diameter 154mm focal length 750mm Coating Four-sided multilayer broadband film (400-700nm) Combined image quality 1/4-1/8 Diameter tolerance +0/-0.12 mm Center thickness tolerance ±0.2mm Focal length tolerance ±0.1% Finish 60/40 eccentric 1\'
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