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Lowest
$27
4 days ago
Average
$29.88
Now $2.88 less
Highest
$29.99
a month ago
Price History
Contains a primary lens with an objective lens diameter of 114mm and a focal length of 900mm, and a secondary mirror with a short axis (short side diameter) of 25mm length. This is the core component of a set of mirrors.
Uses: used in astronomical telescope accessories
Features: The main mirror is a spherical mirror with aluminized surface and a protective film to prevent scratches on the main mirror under light touch. The workmanship is excellent.