Astronomical Telescope F90060M High-definition HD 675 times Moon and Earth Dual-use Mirror

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$18.00 - $27.00 / Piece | 1 Piece/Pieces (Min. Order)
Lead Time:
Quantity(Pieces) 1 - 5000 >5000
Est. Time(days) 15 Negotiable
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Overview
Quick Details
Place of Origin:
Henan, China
Brand Name:
IMAISEN
Model Number:
CDD-WYJ-00014
Caliber:
60mm
Focal length:
900mm
Light collection:
73x
Linear field of view:
18m
Supply Ability
Supply Ability:
5000 Piece/Pieces per Day
Packaging & Delivery
Port
SHEN ZHEN
Lead Time :
Quantity(Pieces) 1 - 5000 >5000
Est. Time(days) 15 To be negotiated

Caliber: 60mm
Focal length: 900mm
Eyepiece: H20mm/H12.5mm/SR4mm
Extender: 1.5x/3x Barov telephoto
Finder mirror: 5x24 inverted image
Zenith mirror: 90° right angle zenith mirror
Theodolite: U-bracket
Weight: 4.5kg
Magnification: up to 675 times
Focus ratio: 15
Light collection: 73x
Field of view: 1.2°
Linear field of view: 18m
About the configuration: the focal length is 900mm, the caliber is 60mm, with 3 eyepieces: SR4 (for daytime viewing), H20 (for moon at night) and H12.5 (see other celestial bodies). In addition, it is equipped with a 3x Barov mirror and a 1.5x mirror. About multiples: separate eyepieces: SR4mm, H12.5mm, multiples of H20mm are: 900/4=225 times, 900/12.5=72 times, 900/20=45 times. Together with the 1.5x positive mirror, the imaging is a positive image, and the multiples are: 338 times, 108 times, 67.5 times. If you do not install a 1.5x mirror, but a 3x Barov mirror, the multiples are: 675 times, 216 times, 135 times. In other words, if we choose the eyepiece SR4mm, and then match the 3 times Barov mirror, then we can set up 675 times. Namely: magnification: 45 times - 675 times.
Note: 3 eyepieces (SR4mm, H12.5mm, H20mm) can only be selected for one installation at a time, and 2 multipliers (3x Barov mirror 1.5x mirror) can only be selected at the same time.