Tele Vue NP101is Refractor

Tele Vue NP101is Refractor

Tele Vue NP101is Refractor

For 30 years, Tele Vue has pushed the boundaries of APO refractors, as well as eyepieces, to the recognized pinnacle of performance. The Imaging System (is) version of the Tele Vue NP101 retain the exemplary wide field and planetary visual capability while adding new features to make imaging easier and more flexible.

Tele Vue was determined to make the NP series optically, mechanically, and functionally as perfect as possible for imaging up to 50mm diagonal chips without penalty to its near ideal visual operation. The NP127is maintains its optical specifications with redesigned 4-element optical systems. Larger rear lens groups absolutely minimize vignetting in formats up to 50mm diagonal. For these large chips an optional field corrector was developed so the corners of the newly brightened edges would virtually be as perfect as the center of the field.

To take full advantage of the larger lenses, Tele Vue developed a larger focuser and draw tube having a 3" front aperture and 2.4" rear aperture. This eliminates any restriction of the larger diameter converging light cone. The rack and pinion focuser is designed to hold 12 lbs. of weight, yet still permit extremely fine focusing control via a 10:1 dual speed pinion assembly. This new draw tube also permits quick change from visual to imaging operation and allows full camera rotation without focus change.

Starting at $4,150
Tele Vue Documents and Diagrams


Type: APO (Nagler-Petzval) Refractor

Elements/Groups: 4/2

Objective: 101mm

Focal Length: 540mm

Focal Ratio: f/5.4

Drawtube/Focuser: 2.4-inch, Focusmate dual-speed rack/pinion

Length OTA: 25.5 inches

Weight: 10.7 lbs (OTA), 12.3 lbs (Standard config)

Maximum Visual Field: 4.9 degrees with 2-inch 55mm Plossl

Maximum Recommended Power: 250x

Tele Vue Eyepiece Performance: View Eyepiece Chart

Included Accessories

Enlarged focuser with 3" entrance aperture and 2.4" exit aperture

Focuser body has brass clamp ring with 2-lock knobs

Accessory end-ring with tilt capability and 4-lock knobs

Imaging insert threaded for Imaging System components

2" accessory insert for visual or other 2" accessories

Focusmate dual-speed focuser 10:1

Sliding metal dew shield

Screw-on metal lens cover

Hard-shell carry case

5-year warranty