William Optics Adjustable Flat For Z73
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ZenithStar 73 Field Flattener
M63 threads attaches directly to the Z73 after focus adapter has been removed
The Z73 Flattener is adjustable up to 15mm to achieve perfect back focus
A locking ring holds your back focus adjustment firmly in place
Camera side has M48 threads to accept a wide T-ring (sold separately)
Gold metal caps for both ends protect the Field Flattener when not in use
Using this adjustable field flattener makes astrophotography with the William Optics 73 mm ZenithStar APO Refractor even better. This flattener contains a 63 mm opening on one end that threads into the telescope, and an M48x0.75 thread on the opposite end. Backfocus is adjustable up to 15 mm, and, once set, is held in place by a locking ring. Requires a camera specific M48 T-mount adapter for connecting to a DSLR camera.
In The Box
William Optics Field Flattener for ZenithStar 73