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Explore 66 MA
A small astrograph built for both imaging and visual observing. The Sky Rover 66MA combines a triplet objective and integrated field flattener so prime-focus imaging can cover full-frame sensors natively. Its 66 mm aperture and f/7 speed keep the tube small and forgiving at the eyepiece and camera.
66 mm native flat-field astrograph
Full-frame imaging at prime focus
Dual ED glass objective design
3.2-inch dual-speed R&P focuser
Visual and imaging friendly design
The optical design integrates a crescent-shaped field flattener with a triplet objective, producing a native flat field so full-frame sensors can be used at prime focus. That means you do not need to calculate additional back focus to reach a flat image plane when using the camera at prime focus.
The front lens group uses two ED glass elements to reduce chromatic aberration and improve colour correction. This helps deliver finer star images and improved contrast, which benefits both widefield imaging and high-detail visual views.
Unlike many compact astrographs, the 66MA accepts standard visual accessories including diagonals and eyepieces. It can also accommodate binoviewers when you add an extender, so the scope functions as a flexible small refractor for both observing and photography.
A 3.2-inch dual-speed rack-and-pinion focuser gives fine control for critical focusing, and the f/7 focal ratio makes focus less demanding overall. A 0.8x reducer is available to widen the field while keeping the system flat, and a compact flange ring is included for imaging focus adjustment.
Yes. The 66MA is a native flat-field design that supports full-frame imaging directly at prime focus, with no back-focus calculation required.
The optical system has an integrated field flattener as part of the triplet objective. A 0.8x reducer is listed as an available optional accessory, not included in the standard package.
Yes. The 66MA is designed to accept standard visual accessories, including diagonals and eyepieces. Binoviewer use is possible when combined with an extender.
It uses a 3.2-inch dual-speed rack-and-pinion focuser to provide coarse and fine focus control for both visual and imaging use.
The package includes the Sky Rover 66MA OTA, tube rings, a Vixen-style dovetail plate, a handle, a finder base, and a soft carry bag.
| Aperture | 66 mm |
| Focal Length | 462 mm |
| Focal Ratio | f/7 |
| Optical Design | Native flat-field system with triplet objective and integrated field flattener |
| Tube Length | 450 mm retracted, 650 mm extended |
| Dew Shield Outer Diameter | 139 mm |
| OTA Weight | 3.8 kg |
| Gross Weight (with tube ring & dovetail) | 4.8 kg |
| Focuser | 3.2-inch dual-speed rack-and-pinion focuser |
| Rear Interfaces | M63 x 1 / M54 x 0.75 / M48 x 0.75 / 2-inch |
| Imaging Support | Full-frame imaging at prime focus with no back-focus calculation required |
| Optional Reducer | 0.8x reducer available |
Accessories and companion products confirmed for this item.
