1pc D305F1200 305mm Parabolic Newtonian Reflector Primary Mirror with 80mm Secondary Mirror for DIY Astronomy Telescopes(80mm Secondary Mirror)

Description

• 305mm parabolic primary mirror with a focal length of 1200mm, devised for optimal light gathering and sharp image .
• Includes an 80mm secondary mirror, perfect for enhancing the performance of your homemade astronomical telescope setup.
• Durable aluminum coating on the lens surface protects against scratches and ensures longevity, providing clear views for stargazing enthusiasts.
• Features a central mark on the primary mirror for easy optical calibration, allowing for precise alignment with eyepieces or machine collimators.
• Ideal for DIY telescope builders, offering flexibility to choose between main mirror, secondary mirror, or complete accessory kits based on individual needs.

The primary mirror center mark is the core reference point of the dimming axis of the Newtonian reflector telescope, which is convenient for optical calibration of the eyepiece or machine calibration of the eyepiece dimming axis after lens installation.
Please select the main mirror, or secondary mirror, or complete accessories according to your needs

Shipping and Returns

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