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ASG Core Products

Mechanical Photon Cages
Remove tilt with our most popular solution. 4 corner tilt removal and pin-point stars.

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Electronic Photon Cages
Remotely remove tilt with precision electronic tilting from your back yard or remote observatory.

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461 Photon Cages
Looking no further than our mechanical & electronic photon cages for the larger medium format setup!

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RASA 11 Standard System
Upgrade your standard RASA 11 to M54 and 2″ filter sliders and get max benefit from f/2 speeds.

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RASA 11 PRO System
No compromises with large M68 aperture and 50x50mm square filter slider. Full-frame F/2 performance!

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RASA 8 System
Add precision 4-corner tilting, backfocus adjustment, and a fully removable filter slider on your RASA 8!

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Additional ASG Products

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ASG Services

Custom Astrophotography Builds
Send all your items to our Oregon offices and will professional build, test, crate, and ship your project. Let us build & test your next Astrophotography setup!

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Product Testing & Design Services
We provide professional grade engineering services and product testing within our professional grade multi-dome observatory.

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Inside our Dual Dome Observatory
With more and more need for a professional observatory structure, we build our unique dual dome building. Follow as we show some of the challenges and benefits to this build.

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Education

Education & Tutorial Articles

Special RASA 11 Light Analysis
What you might like to know about RASA 11 and special optical train considerations. F/2 is fast, and we optimize systems specifically for these scopes.

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Engineering the Electronic Tilter
As one of the first to develop an electronic precision astrophotography camera tilt device, we take a look at the engineering project.

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Collimation, Backfocus & Tilt Guide
Our quick guide to explaining what collimation is, how to quickly setup backfocus, and start adjusting tilt with your astronomy gear.

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Calibration Frames Explained
Creating calibration frames for Astrophotography images is easy! A quick guide to Master Bias, Master Flats, Master Darks, and Master Flat Darks.

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Most Popular Items

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POPULAR

ASG Electronically Assisted Tilt (EAT) Photon Cage

ASG Electronically Assisted Tilt (EAT) Photon Cage

$2,495.00

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ASG Electronically Assisted Tilt (EAT) Photon Cage

$2,495.00

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ASG Photon Cage

ASG Photon Cage

$695.00

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ASG Photon Cage

$695.00

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ASG RASA 8 Package

ASG RASA 8 Package

$895.00

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ASG RASA 8 Package

$895.00

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ASG RASA 11 Standard Package

ASG RASA 11 Standard Package

$995.00

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ASG RASA 11 Standard Package

$995.00

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HOT!

ASG RASA 11 PRO Package

ASG RASA 11 PRO Package

$1,195.00

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ASG RASA 11 PRO Package

$1,195.00

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HOT ITEM!

ASG MaxQ - Camera Spacer Removal Tool

ASG MaxQ - Camera Spacer Removal Tool

$59.00

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ASG MaxQ - Camera Spacer Removal Tool

$59.00

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Existing Cage Upgrade

ASG Photon Cage Duo Ring Upgrade

ASG Photon Cage Duo Ring Upgrade

$179.00

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ASG Photon Cage Duo Ring Upgrade

$179.00

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ASG Photon Cage - 461 Edition

ASG Photon Cage - 461 Edition

$1,249.00

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ASG Photon Cage - 461 Edition

$1,249.00

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Lead Time: There is currently a short lead time on these parts. Email us to find out how soon this part will be available.

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