مميزات خاصة

Optics: devised for refractive astronomical telescopes, our 90mm double separation objective lens provides exceptional image clarity and detail, perfect for stargazing and observations.
Multiple Focal Length Options: Choose from 500mm, 900mm, or 1000mm focal lengths to suit your specific astronomical needs, allowing for versatile usage in various observational scenarios.
Durable Multi-layer Coating: Each lens features a multi-layer coating (green or blue film) that enhances light transmission and reduces glare, ensuring a brighter and clearer viewing experience.
Precision Engineering: With strict tolerances on diameter, center thickness, and focal length, our lenses are crafted to meet high standards, ensuring optimal performance and reliability for your telescope.
Easy DIY Assembly: The product consists of two refractive double-separation objective lens groups, making it simple to assemble and integrate into your existing telescope setup for enhanced observational capabilities.

وصف

The objective lens of a refractive astronomical telescope：D90F500 broadband film:
Caliber D:93mm Focal length F: 500mm Coating: Multi-layer broadband 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 refractive double-separation objective lens groups Used for the objective lenses and collimating objective lenses of astronomical telescopes.
The objective lens of a refractive astronomical telescope：D90F900 Multi-layer blue film:
Caliber D:93mm Focal length F: 900mm Coating:Multi-layer 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 refractive glued objective lens groups It is used for the objective lenses and collimating objective lenses of astronomical telescopes.
The objective lens of a refractive astronomical telescope：D90F900 Multimembrane:
Caliber D:93mm Focal length F: 900mm Coating:Multilayer broadband 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 refractive double-separation objective lens groups It is used for the objective lenses and collimating objective lenses of astronomical telescopes.
The objective lens of a refractive astronomical telescope：D90F1000 Multimembrane:
Caliber D:93mm Focal length F: 1000mm Coating:Multi-layer broadband 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 refractive double-separation objective lens groups It is used for the objective lenses and collimating objective lenses of astronomical telescopes.

مرحبًا،

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1 قطعة 90 مم تلسكوب فلكي انكساري عدسة موضوعية منفصلة - طلاء متعدد الطبقات لتعزيز الوضوح (عدسة موضوعية متدفقة D90F900)

مميزات خاصة

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