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PURCHASE THE 6" f/6 NEWTONIAN TELESCOPE

 

If you are looking for a smaller to medium size telescope that does a great job of imaging but doesn't come with the cost of a Ritchey-Chretien, check out the TPO 6" f/6 Newtonian Telescope! All of our Imaging Newtonian optical tube assemblies, offered in apertures from 6" - 12", have very fast optics for the widest fields possible. Image with a DSLR or small webcam all the way up to large sensor CCD cameras with these inexpensive yet effective Newtonians. The optics on all TPO Imaging Newtonians consist of a parabolic primary mirror and an elliptical secondary, or diagonal. The mirrors are made from B270 white water optical crown glass, which is more thermally stable than glass traditionally used on other reflectors. A 91% aluminum coating is applied, and then over-coated with a layer of quartz for the ultimate in durability. The primary mirror cell is very sturdy, and has six collimation knobs that can be adjusted by hand with a push or pull of the knob. Collimation is made even easier due to the center spot marked on the primary mirror. The diagonal mirror is held in place with a thin four-vane spider. There's a perfectly centered dot in the middle of the primary so you know exactly where your laser collimator should point. You stick the laser in where the eyepiece goes, so it bounces off of the secondary to the primary. If the primary is center marked, then all you have to do is match up your laser dot to the marked dot and you're collimated!

The optical tube assembly on the TPO 6" f/6 Newtonian Telescope is made of rolled steel and painted white. The ends of the tube are die-cast aluminum, which contribute to the OTA's rigidity. Steel is a bit heavier than traditional aluminum, but since it has a lower coefficient of thermal expansion, your telescope will tend to hold its shape (and therefore, hold focus) as temperatures fluctuate throughout the night. The inside of the OTA is painted in a matte black finish, which stops stray light in its tracks. A single speed Crayford-style focuser rounds out this package. It takes ten turns of the microfocusing knob to equal just one turn of the larger knob. There is also a little knob on the bottom of the focuser that controls the tension, so that you can make adjustments depending on the weight or distribution of your load. You will also receive a 1.25" compression ring adapter for use with 1.25" eyepieces, and a 35mm extension tube to help you match the back-focus requirements of your imaging equipment.

The telescope comes with dual split-hinged mounting rings that are made of die-cast aluminum and felted on the inside to cradle the OTA without scratching. There are threaded holes on the underside of the rings that allow installation on either a Vixen-style (included) or Losmandy-style dovetail plate. The top of the rings is also drilled so that you can mount accessories. All TPO Imaging Newtonians come with an 6x20 straight-through finderscope. The ocular has a non-illuminated crosshair and has 13mm of eye relief. A quick-release mounting bracket is also included.

6" f/6 Newtonian Telescope

SKU: OS-66N
$199.00Price

PURCHASE THE 6" f/6 NEWTONIAN TELESCOPE

 

 

Optical Design Newtonian Reflector
Warranty 1 Yea
Aperature 6"
Focal Length 912mm
Focal Ratio f/6
OTA Outer Diameter 7.25"
OTA Lenth 33"
OTA Weight 10.5lbs.
Optical Coatings Aluminum
OTA Color or Finish Gloss White
Focuser Size 2"
Focuser Style Crayford
Finder Included 6x30 Optical Finder
Focusing Manual
Focusing Speeds 1 Speed