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For users who have a platform and want to add a large aperture Newtonian option to their observational arsenal, Bresser offers their NT150S Messier 6" f/5 Reflector Telescope here without a mount or tripod. The optical tube assembly features a Newtonian reflector design with a large aperture and a fast f/5 focal ratio to make this telescope ideally suited for astrophotography and astroimaging. Its large 6" primary mirror allows planets and the Moon to appear bright and clear while having the capacity to see out of the solar system to bright nebulae, galaxies, and binary stars.
While there is no mount included, a mounting cradle-ring assembly is provided. It clamps over the optical tube and lets the user adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balancing, while avoiding interference with other equipment. A stainless steel Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle, and a 1/4"-20 stud on the top of the cradle ring assembly enables a camera to be piggybacked onto the scope for wide-field photography.
The scope is equipped with a 2" rack-and-pinion focuser for over-sized eyepieces and accessories, and comes with a 1.25" reducer adapter and a 1.25" 26mm super Plossl eyepiece that yields 29x power on the OTA. The adapter also has integrated T2 mounting threads to enable the use of a user-supplied DSLR-specific T2 ring for astrophotography through the scope.
Focal ratio: f/5
Focal length: 750mm
Reflector-style optical design
6x30 non-illuminated straight-view finderscope
Requires user-supplied mount and tripod
Vixen-style dovetail mounting plate
Integrated 1/4"-20 piggyback camera mounting screw
Mounting ring cradle enables OTA orientation adjustment relative to mount
Carrying handle for safe set-up and break-down
2" rack-and pinion focuser
26mm super Plossl eyepiece, yields 29x power
2"-to-1.25" eyepiece adapter with integrated T2 threads
In the Box
BRESSER NT150S Messier 6" f/5 Reflector Telescope - OTA Only
2-to-1.25" Eyepiece Adapter
Planetarium Software CD-Rom
Rotating Star Map
Limited Ten-Year Warranty
Table of Contents
5.9" / 150 cm
Eyepiece Barrel Diameter
2", directly into focuser 1.25" with included adapter
Vixen-style dovetail plate
Optical Tube Dimensions
Diameter: 7.1" / 18.0 cm Length: 27.2" / 69.0 cm
12.1 lb / 5.5 kg
BRESSER NT150S Messier 6" f/5 Reflector Telescope - OTA Only Review