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Telescope mirror blank, Pyrex, 18 inch dia.x 1.75 inch thick, 144 inch cc ROC Sold!

Price - $1,000.00

Ad Number: 122900

Posted: 03 Dec 2017

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Fine annealed Pyrex mirror blank, edged & beveled, 1 side generated flat, 1 side generated to 144" concave (F/4.0), ready to begin grinding at 30 micron. Get a discounted start on that 2018 New year's resolution to DIY your next telescope.
Note: this blank is free from chips or bubbles, the artifacts in the photo are a drop of water and several dust particles.


  • Condition Mint
  • Location Hubbardston MA

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