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Home > Classifieds > Astromart Classifieds > Telescope Making > Classified #142004

For Sale: 16 inch F15 Cassegrain mirror ** SOLD **

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16 inch F15 Dall-Kirkham Cassegrain mirror set made of Pyrex by Paul Jones of Star Instruments. Interferometer test shows rms phase error to be 0.037 wavelengths; lowest to highest 0.22 wavelengths. (The surface errors are half of these). Secondary 4.25" diameter; hole in primary 3.9". Primary mirror thickness approximately 3.0" at center. Back focus 14". Aluminum coating. Purchased in 1992, never used, but might need re-coating. $4300 plus shipping.

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