Shop
ASG Core Products

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

Learn More

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

Learn More

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

Coming Soon!

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

Learn More

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

Learn More

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

Learn More
Additional ASG Products

Filter Sliders

Filter Slider Boxes

RASA Accessories

3D Printed Parts

Astronomy Equipment

Astronomical Filters

Filter Sliders & Wheels

Astro Cameras

Telescopes

Astronomy Equipment

Used Equipment

Weather & Safety Monitors
Services

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!

Read More

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

Read More

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.

Read More
Projects

Education & Tutorial Articles

ASG SubInspector
Free software that lets you analyze a folder of fits/xisf images based on HFR, FWHM, Stars, Eccentricity, and overall scoring. Makes it easy to pull bad subs out of a folder.

Read More

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.

Read More

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.

Read More

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.

Read More

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.

Read More
Gallery
Partners
Contact

ASG Astronomy

Shop our Astronomy Services & Gear store online

Store

ASG Products

Filters & Accessories

Telescopes & Cameras

Weather & Safety Monitors

Most Popular Items

View 10 25 50 Showing 31-40 of 68 Results

Product successfully added to your cart. View Cart

ZWO M54 Male Thread to M42 T/T2 Female Thread Zero Optical Length Adapter

ZWO M54 Male Thread to M42 T/T2 Female Thread Zero Optical Length Adapter

$16.00

*Click for more info*

ZWO M54 Male Thread to M42 T/T2 Female Thread Zero Optical Length Adapter

$16.00

*Click for more info*

Successfully Added to your Shopping Cart

Adding to Cart...
Standard Filter Slider System

Standard Filter Slider System

$149.00

Select Options

Standard Filter Slider System

$149.00

Select Options

Successfully Added to your Shopping Cart

Adding to Cart...
Hot!

Filter Assembly for RASA 8 + 2600/QHY600SBFL

Filter Assembly for RASA 8 + 2600/QHY600SBFL

$249.00

Select Options

Filter Assembly for RASA 8 + 2600/QHY600SBFL

$249.00

Select Options

Successfully Added to your Shopping Cart

Adding to Cart...
Blue Fireball M42x0.75 T/T2 Male to M54x0.75 Male Thread Adapter

Blue Fireball M42x0.75 T/T2 Male to M54x0.75 Male Thread Adapter

$24.87

*Click for more info*

Blue Fireball M42x0.75 T/T2 Male to M54x0.75 Male Thread Adapter

$24.87

*Click for more info*

Successfully Added to your Shopping Cart

Adding to Cart...
Blue Fireball M48x0.75 Male to M54x0.75 Male Thread Adapter

Blue Fireball M48x0.75 Male to M54x0.75 Male Thread Adapter

$24.95

*Click for more info*

Blue Fireball M48x0.75 Male to M54x0.75 Male Thread Adapter

$24.95

*Click for more info*

Successfully Added to your Shopping Cart

Adding to Cart...
Blue Fireball 360 Camera Rotator - M68x1.0

Blue Fireball 360 Camera Rotator - M68x1.0

$84.95

ADD TO CART CHECKOUT NOW

Blue Fireball 360 Camera Rotator - M68x1.0

$84.95

ADD TO CART CHECKOUT NOW

Successfully Added to your Shopping Cart

Adding to Cart...
Blue Fireball M68x1 Thread Spacer Set (8 Spacers from 5mm to 20mm)

Blue Fireball M68x1 Thread Spacer Set (8 Spacers from 5mm to 20mm)

$154.95

*Click for more info*

Blue Fireball M68x1 Thread Spacer Set (8 Spacers from 5mm to 20mm)

$154.95

*Click for more info*

Successfully Added to your Shopping Cart

Adding to Cart...
PRO M68 Scope Side Baseplate

PRO M68 Scope Side Baseplate

$79.00

ADD TO CART CHECKOUT NOW

PRO M68 Scope Side Baseplate

$79.00

ADD TO CART CHECKOUT NOW

Successfully Added to your Shopping Cart

Adding to Cart...
PRO M68 Filter Slider System

PRO M68 Filter Slider System

$155.00

Select Options

PRO M68 Filter Slider System

$155.00

Select Options

Successfully Added to your Shopping Cart

Adding to Cart...
RASA 11 PRO 68mm Camera Holder

RASA 11 PRO 68mm Camera Holder

$155.00

ADD TO CART CHECKOUT NOW

RASA 11 PRO 68mm Camera Holder

$155.00

ADD TO CART CHECKOUT NOW

Successfully Added to your Shopping Cart

Adding to Cart...

2 3

4

5 6