The cookie settings on this website are adjusted to allow all cookies so that you have the very best experience. If you continue without changing your cookie settings, we'll assume that you are happy to receive all cookies on our website. However, if you would like to, you can change your settings at any time using the Change cookie settings link in the Special menu.        
Home > Altair & APM Telescopes > Newtonian telescopes > Altair 12" 300mm F4 Truss Tube Imaging Newtonian Astrograph

Altair 12" 300mm F4 Truss Tube Imaging Newtonian Astrograph

Altair 12" 300mm F4 Truss Tube Imaging Newtonian Astrograph
Altair Astro 12" 300mm Truss Tube Newtonian Astrograph Altair Astro 12" 300mm Truss Tube Newtonian Astrograph
Price: Contact us for price
Product code: AAIMN300TT
  • Order Now!

A new product coming out around Q2 2016.

Fast focal length Newtonian of larger apertures can suffer from rigidity problems which affect collimation due to the weight of the mirrors. What's more, tube currents often affect large Newtonian telescopes, especially those with solid tubes.

We have customers who like the idea of large aperture Newtonian imaging, yet are frustrated with the "reasonably priced aperture gap" in the fast-astrograph market. This product is designed with these customers in mind.

So, if you want a faster focal ratio Newtonian which can be mounted on a GOTO EQ mount for wide field imaging of both planets and deep sky objects, plus visual observing, then this could be the right scope for you.

Design objectives:

1) A scope which is more rigid than a carbon fibre or metal tube, in order to maintain collimation. A triangulated truss and strut design achieves this objective.

2) An open tube design to encourage maximum air flow, reducing tube currents to negligible levels, and allowing fast cool-down. Air flows through the shroud which covers the truss tube assembly, but dust light and dew are not a problem.

3) To reduce the effects of expansion and contraction caused by temperature change. Carbon fibre has a very low coefficient of expansion, and is the perfect material for the job.

5) Large aperture optics with perfect colour correction, allowing maximum field illumination and fast focal ratio for imaging. A fast Newtonian is the answer.


Aperture: 12" / 305mm
Focal Length/Ratio: 1220mm F4
Resolution: 0.38 arc seconds
Highest Practical Magnification: 405x
Visual Magnitude: 14.9
Aperture: 10"
Weight: 23kg

Sorry it's taken so long. There have been a few stops and starts along the way, but they tend to make for a better product in the long run.

To register for stock notification just click the "Notify when in stock" button. 

Altair Astro Product Discussion ForumQuestions about Altair products?
Where to buy Altair Astro products:
UK orders:

Europe orders:

North America & Canada orders: 

Products can be ordered online from Altair with tracked insured shipping to anywhere in the world. For large items shipping price may need to be re-quoted.

Russia orders: Please contact.

Availability: If product shows as out of stock, please click on the "Notify me when in stock" button to receive instant notification of availability. Altair Astro and iOptron reserve the right to change the product price and specification without notice. 

Customer feedback

Customer Reviews

There have been no reviews for this product.

Send to friend

: *
: *
: *
Type the characters you see in the picture:

Gift certificates