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PRECISION 30MM DIAMETER, 300MM FL ACHROMAT

$14.00 USD
Product Code: PA1054
Availability: In Stock

Manufacturer's part #01 LAO 639. Original price: $85.00. Made of crown and flint glasses (not cemented, but we sell balsam), design wavelengths are 486.1nm, 589nm, and 656.3nm. 30mm diameter with a focal length of 300mm making this an f/10. Edge thickness is 8.5mm, center thickness is 9.4mm. Edges have a .25 - .50mm bevel. Unused.

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