The William Optics Flattener dedicated to the ZenithStar 73 optical tube ensures the maintenance of uniform image quality - flatness, because the flattener is a "flattener" - both in the center and on the edge of the frame, eliminating the negative impact of the refractor's optical system, as a result of which as you move away from the center of the frame, the sharpness of recorded objects gradually deteriorates.

The Flattener works with systems (through the appropriate M48 ring):

• M4 / 3
• Sony α
• Nikon
• Pentax
• Canon
• Fuji

Technical parameters

• multiplicity: 1.0x
• back focus: adjustable, 1 - 15 mm (11.4 mm for the ZenithStar 73 refractor)
• telescope mount: M63 thread
• camera mount: M48 thread
• possibility of mounting the filter: yes, thread M48

Product description on the manufacturer's website: https://williamoptics.com/new-adjustable-flat73-for-z73

Kit components

• William Optics Flat 73A flattener for ZenithStar 73 refractor

Warranty

24 months