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ZWO EAFN Basic Version Electronic Automatic Focuser 5KG High Load Capacity with Hand Controller Temperature Sensor
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ZWO EAFN Basic Version High Precision Electronic Automatic Focuser 5KG High Load Capacity Astronomical Accessory
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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
Package Included:
- 1 x Primary Mirror
