Version two tri bahtinov pattern

for: GSO Newtonian Orion/Sky-Watcher 10 inch Telescopes 277.5 mm inner diameter fit on end of Telescope, 88mm center hole on mask. These are customizable if need changes or a custom one made. Or a whole new mask made. I make bahtinovs and Caps as well custom.

New design version!  277.5mm fit on inner diameter of telescope. Has a lip on end to fit like a cap. Total outer diameter of mask is 283mm

Bahtinov Focus Mask for Telescope - GSO 10 Inch Newton tri bahtinov Mask From Spencer 3D  cap fit on 8nner diameter. Condition is New. Shipped with USPS First Class. Software Designed and tested. Works great with these and similar models. 3d printed and designed by Spencer 3d. As always fast USPS SHIPPING. 2 TO 3 DAY SHIPPING. BLACK. If want in a different color I can make in several other colors just message and ask me. New Design GSO 10 inch tri Bahtinov design.  Works great!

Pictures are of a small Gso Newt 8 inch version. I will update pictures once the first one is made. Thanks.