TEC 6"f12 Maksutov-Cassegrain

Auction No.:
Current Bid:
High Bidder:
Khaldun Maruf
Bid History:
37 Bids
Machesney Park, IL - US
Marjorie Christen
09/17/2022 08:14PM
09/24/2022 08:17PM
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Rare TEC 6" F12 Maksutov-Cassegrain, early model with quartz optics. Superb optics, hand figured by master opticians with very smooth wavefront. Great for high power lunar/planetary and double-star observing. Can be used with 2" wide field oculars for deep-sky viewing. Multi-coated optics insure high- contrast images. Internal baffles prevent stray light from nearby bright object from reaching the focus point. Internal mixing fan behind the mirror allows fast cool-down of the primary mirror. Images are sharp and contrasty within minutes even on cool nights. Focus is achieved with a special ruby-tipped micrometer on a center-point sliding mirror tube. Imperceptible image shift even at very high powers.

This scope is the ultimate grab&go whether used with a simple alt-az or a small equatorial mount. Scope can be packed into an airline overhead roller bag for air travel.

This scope is collimated and in excellent condition.


Clear aperture:  152mm, 6"

Secondary diameter:  44.5mm, 1.75"

Focal length: 1824mm, 72", F12 focal ratio

Tube weight: 4.3 kg, 9.5 lb

Tube dimension:  175mm x 508mm, 6.9" x 20"


Scope includes:

Internal cooling fan with external 9 volt battery supply

Front slide-on dew shield

Provision for 2 sets of finder brackets

Dovetail adapter on main tube will accommodate Losmandy style 7" dovetails

Scope is shipped in a sturdy case with wheels and telescoping handle

09-19-22 Updated photos. The captain's wheel was missing from the original photo. 

Marjorie Christen, Astro-Physics