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Updated 11/19/24

 

 
Dobsonian Goodies

Apertura/GSO motion/stability fix.

Apertura setting circles prototype
EZ adjust setting circles.
Height adjustment stands

 


Image Sharpening Masks
 
Visual: Fix turned down edge.     
Imaging: Remove mirror clip flare.
  

Premium Mirror Cells
for 6" to 13.1" mirrors.

Optimized support points.
Removes mirror-clip flarirng.

Imaging back-focus extender
Cell removes mirror-clip flaring.

 

Clamshell & Rotating Rings

For Dobsonian mounts
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For Equatorial mounts
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Favorite Links

Adventures In Deep Space

Golden State Star Party
Equatorial Platforms
 

Back focus correcting mirror cell.
Push your mirror cell distance back matching focuser.
Integrated mirror mask eliminates clip star flares.

$120 plus shipping.


Cell shown separated from focal length extender.
 
 
"Just got in from a three and half hour session outside. Went wonderfully!

This new mirror cell collimates much, much easier than the stock cell. I had no difficulty getting the scope well collimated. And I either had a night of great seeing, or these modifications have significantly improved the image quality that I'm getting from the scope." - Mike J.        

Reposition your mirror back: our tube extender cell is custom designed to your distance spec. Attaches to OTA using existing mirror cell bolt holes. Collimation bolts allow fine tuning.

Integrated mirror retaining ring eliminates clips that create star flaring (compare before/after). Mirror support point positions calculated to providing optimal support/performance.

Complete the information below to receive a PayPal invoice/quote with shipping by e-mail.

Your name:
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Mirror diameter:
Mirror thickness:
Tube outside circumference:
Cell mounting holes distance from tube end:
Cell mounting holes size:
Mirror face to cell mounting holes distance:
Distance to move mirror face back:
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Mounted to tube.
Assembly top down view.
Assembly back end view.