Contact our Sales Team by Email: opt@optcorp.com or Telephone: 800-483-6287
 

Model Range

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Specification

AG8

Primary mirror diameter

200mm

Focal length

760mm

Focal Ratio

f3.8

Focus Distance
to Image Plane

79mm

*Tube Weight

approximately 6kg

Tube Diameter

255mm

TubeLength

635mm

Tube Material

Carbon fibre sandwich

Secondary Size

90mm

Mirror Cell

CNC Machined alum.
9 point suspension

Focuser *

3" Add on Option

Corrector Design

4 lens ED

Flat Field Size

45mm

Spot Size on Axis

4.1 microns

Spot Size at Field Edge

8.1 microns

Mirror / Tube Cooling

3 Controllable fans.
Heaters optional

Attachment Method

CNC machined alum.
Cradles + Dovetail

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

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AG tube shown with Upgrade kit to increase stability of focuser

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The AG8 is the 'introductory' model in our Astrograph range. Don’t let the aperture of 200mm make you think that this is a modest performer, for it’s aperture, it’s probably the best reflecting Astrograph available anywhere. If it’s not, we would love someone to correct us.

Carbon fibre tube is one of the keys to the success of this ‘scope, stabilising the focal length throughout an imaging session and staying collimated virtually for ever once set up.

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.

Careful attention has been paid to the design of this and all of the AG’s in the range, exacting engineering and, superb optical components guarantee that once you have set up your AG8 you are ready to transform your opinion of what you are capable of producing in Deep Sky imaging.

The AG8 was the first model we developed and introduced to the range. It proved to be an immediate success because of the amount of development and field trials we carried out with the help of Peter Shah, arguably one of the UK’s leading Deep Sky imagers. Peter was ultra critical both in corrector characteristics and performance and, coupled with stringent tolerances on engineering, these aspects complimented our mirrors to satisfy his, and to date, everybody else’s CCD imaging requirements.

We later developed the current range up to and including the AG16 which is now our second biggest seller, following the AG12 in popularity.

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AG8 CHARTS
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Spot Diagrams

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Optics

AGfeathertouch

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

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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.