TeSeek D203F750 Paraboloidal Primary Mirror DIY Astronomical Newtonian Reflective Telescope Objective Lens
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TeSeek D203F750 Paraboloidal Primary Mirror DIY Astronomical Newtonian Reflective Telescope Objective Lens
Description:
- There is a centre mark pasted on the primary mirror, which is the core reference point for adjusting the optical axis of the Newtonian telescope. It facilitates the use of optical calibration eyepieces or laser calibration eyepieces to adjust the optical axis after lens installation.
Specification:
- Primary mirror aperture: 203mm
- Primary mirror focal length: 750mm
- Precision: 1/6λ
- Coating: aluminum plus protective film
- Secondary mirror: minor axis 70mm for D203F750
Package Included:
- 1 x Primary Mirror
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