AGO Newtonian astrographs are a photo junkie's idea of Nirvana. By combining large aperture, fast focal ratio, corrected optics in a lightweight, stiff, and thermally stable carbon fiber tube AGO has created an instrument with a singular purpose: to devour photons and precisely focus them on your CCD camera's chip.
AGO Newtonian astrographs offer the best value in the high-end Newtonian astrograph market. On a feature by feature comparison, there is no comparison: AG Optical Systems is light years ahead!
Best in class FLI Atlas focuser is standard
High quality primary and secondary optics (Ultra Low Expansion mirrors optional)
Thick wall carbon fiber sandwich honeycomb core tube for focus stability
Wynne corrector with generous 3.1" of back focus, focus interface machined directly into corrector housing for a rigid, tilt-free, repeatable connection
Focuser reinforcement rings to carry heavy camera loads
Multipoint primary mirror flotation cell with heavy duty locking screws for collimation stability
100% Made in the USA with outstanding customer support
Model | N10a | N12.5a | N16a |
Aperture | 10" | 12.5" | 16" |
Focal ratio | 3.8 | 3.8 | 3.8 |
Focal length | 38" | 47.5" | 60.8" |
Optics | Supremax 33 full face primary mirror, center marked with Catseye Hotspot | ||
Secondary size (ma) | 4" | 4.5" | 5.75" |
Focuser | FLI Atlas digital focuser |
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Corrector | 3" Wynne with 80 mm backfocus, several camera adapters available | ||
Coatings | High reflectivity aluminum | ||
Tube Rings | hinged, 6061 black anodized, predrilled to fit Paramount ME Versaplate | ||
Tube outer diameter | 14" | 16" | 20" |
Tube length | 34" | 42" | 58" |
Tube weight | ~ 28 lbs | ~44 lbs | ~ 88 lbs |
Supremax 33 low expansion mirrors
Enhanced aluminum coatings
CNC-machined multi-point flotation cell for primary mirror
Multiple edge supports at mirror's center of gravity
Primary mirror baffle
Off-axis abberations are corrected through the use of an AGO-designed, 100% made-in-the-USA 3.2" Wynne corrector providing pinpoint stars over a 50mm diameter field of view. The Wynne corrector provides generous 78.5 mm of backfocus accomodating many CCD camera/filter wheel/off axis guider combinations.
FLI Atlas with Wynne Corrector and adapters
AGO has selected the best in class FLI Atlas digital focuser as standard equipment for our Newtonian astrograph line. This focuser is capable of carrying heavy camera loads and is extremely smooth and robust. Its digital control system allows automatic focusing of stars and perfectly complements an AGO Newtonian astrograph.
CNC machined 6061 components, black anodized for a dark, durable finish
All fasteners stainless steel
Focuser base reinforcement rings are standard on AGO Newtonian astrographs to provide critical support to heavy imaging cameras.
High quality prepreg carbon fiber materials cured at elevated temperature using vacuum bag techniques
Reinforced interface at tube-to-focuser base junction
Three 12vdc, speed adjustable cooling fans