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Specification

AG12

Primary mirror diameter

300mm

Focal length

1140mm

Focal Ratio

f3.8

Focus Distance
to Image Plane

79mm

*Tube Weight

approximately 16kg

Tube Diameter

350mm

TubeLength

980mm

Tube Material

Carbon fibre sandwich

Secondary Size

110mm

Mirror Cell

CNC Machined alum.
9 point suspension

Focuser *

3" Add on Option

Corrector Design

4 lens ED

Flat Field Size

>50mm

Spot Size on Axis

1.7 microns

Spot Size at Field Edge

4.6 microns

Mirror / Tube Cooling

3 Controllable fans.
Heaters optional

Attachment Method

CNC machined alum.
Cradles + Dovetail

Our AG12 is by far the most popular model in the AG range of Newtonian Astrographs.

Why is the AG12 so popular? Several reasons, all of them important to customers . . . It’s weight ensures its not too heavy to be used as a portable instrument, it travels incredibly well. No need for an observatory, you can easily position it on your mounting in a minute or so without any assistance. The performance will amaze you, we really mean this, it will AMAZE you. We have images taken with AG12’s which are often compared (not quite equalled but a very, very respectable offering) with professional telescopes of several metres aperture.

The excellent Starlight Instruments - Feather Touch FTF3235B-A 3 inch dual speed focuser is vailable as an add on (see below right) to offer excellent stability over a wide range of camera loads.

We know why the AG12 is so good and, the amateurs, professionals who now own one, will tell you also. It’s the attention to detail and, the superb optics and their coatings, you won’t beat them, anywhere.

Rather than us explain the merits of an AG12, we will let the images speak for the telescope. Take a look at some of Mike Sidonio’s images in our gallery and Peter Shah’s too. He knew what the AG8 was capable of and he then realised that the AG12 would be a stunning upgrade, his images are witness to that decision.

> IMAGE GALLERY
 

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*The weights shown on each model refer to the standard optical tube with no additional equipment added.

AG12 CHARTS
(click title to view)

Spot Diagrams

Vignetting Plot

Compare Specs.

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Optics

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AG tube shown with Upgrade kit to increase stability of focuser

AGfeathertouch

Starlight Instruments - Feather Touch FTF3235B-A 3 inch dual speed focuser. Available as as add on.

Dealers

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Image Gallery

Telescopes

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Note: All USA AG 'scopes are supplied with adapters to connect to Starlight Instruments FTF3235B-A 3 inch focuser. Focusers are not supplied with the telescope but are available as an 'add on'. Images used are for aesthetic appearance only.