折射式天文望遠鏡
S500M-D 90mm f/5.5  |   產品介紹折射式天文望遠鏡 |
|---|
S500M-D 90mm f/5.5
Description:
* Advanced 2-element objective lens system minimizes color aberration
* Fully multi-coated optics ensures utmost light transmission
* Finely CNC machining aluminum body and focuser
* Deluxe high-glossy anodizing finish
* Retractable sunshade
* Accept all 1.25” universal telescope eyepieces
Specification:
Optical design: Refractor
Aperture: 90mm
Focal Length: 500mm,
Focal Ratio : f/5.5
Lens: Doublet, ED APO Fully Multi-Coated
Attachments: 2" Rack & Pinion Bearing Type -Dual Speed Focuser, Aluminum Carry Case
* Advanced 2-element objective lens system minimizes color aberration
* Fully multi-coated optics ensures utmost light transmission
* Finely CNC machining aluminum body and focuser
* Deluxe high-glossy anodizing finish
* Retractable sunshade
* Accept all 1.25” universal telescope eyepieces
Specification:
Optical design: Refractor
Aperture: 90mm
Focal Length: 500mm,
Focal Ratio : f/5.5
Lens: Doublet, ED APO Fully Multi-Coated
Attachments: 2" Rack & Pinion Bearing Type -Dual Speed Focuser, Aluminum Carry Case
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