Customer comments/photos.
Updated 6/1/24

ATM Altitude and Azimuth
Bearing Parts

Laminate rings and strips.
Teflon pads.
Azimuth bolt assembly kits

Sharper Image Masks

Primary:Fix Turned Down Edge.    

Primary: Remove mirror clip flare.
Spider: Remove diffraction spikes.

Premium Mirror Cells
for 6" to 13.1" mirrors.

Each cell design calculated to optimize your mirror's performance. Eliminates mirror-clip aberrations for true circular aperture.

Clamshell & Rotating Rings

For Dobsonian mounts
For Equatorial mounts
AstroGoods.com: Integrated Azimuth Setting Circles

EZ-Adjust Azimuth Setting Circles

Click upper right arrow to enlarge image.


Custom sized to fit you rocker box boards
with Integrated azimuth setting circle.

Simple and easy to use:

  • Set your mount down in any orientation.
  • Turn your rocker box to point north, or center Polaris in your finder.
  • Turn the setting circle to align zero with the pointer.
Predrilled rough sanded kits only. Maximum circle up to 23" O.D.
Includes: All items shown, azimuth laminate ring, bolt assembly, pointer.

Altitude bearing setting circles available on our bearings, or as individual arcs at request.

$183 plus shipping.
Order form.
  (Also available as an option on mounts orders)

Bottom view of ground board.
Feet directly below Teflon pads.
Top view of ground board with Teflon pads.
18mm birch plywood supports circle, no extra weight.
6mm laser inscribed birch plywood
setting circle freely sitting on ground board.
Simply rotate circle to north, stays in position.