Airy Disk 1x Dedicated Field Flattener for 60mm APO Refractors

Description

1x-Flat Field for sharper stars all to way to the edge. Specifically made for the 60mm APO. Screws on to the M63x1-Thread. The spotdiagrams show that all colors are well corrected up to APS-C. ♦ 1x factor ♦ 55 mm to 60 mm back distance – fine tune in 0,05 mm Increments – from the M48x0,75-thread

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