Tele Vue

Adorama

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$3,595.95
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Item Includes Description Features Specifications

Tele Vue (New Up-dated) NP101 4" f/5.4 Refractor Telescope (Ivory tube) with 10:1 Dual Speed Pinion Assembly Focuser.

Mfr. Part: NPF-4056     SKU: TVNP101

Tele Vue (New Up-dated) NP101 4" f/5.4 Refractor Telescope (Ivory tube) with 10:1 Dual Speed Pinion Assembly Focuser.
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Item Includes
custom-fitted case, screw-on lens cover, sliding dew/glare shield, 2" everbrite, 1 1/4" adapter.

Description
The successor to the Tele Vue-101 - The NP-101 (Nagler-Petzval) is more compact with the same 4-element, 540mm, f/5.4 specifications. This scope is 4" shorter and feature both optical and mechanical enhancements over the previous model.

Ivory color powder-coated aluminum tube, black anodized lens housing, focuser assembly and mounting ring.

Specifications
Telescope type4-element apochromat refractor using special dispersion glasses
Clear aperture101mm (4 inches)
Aperture gain208 (compared to a 7mm exit pupil)
Focal length540mm (21.3 inches)
Focal ratiof/5.4
Resolution (visual)1.1 arc-sec (Dawes limit for a 4" aperture)
Resolution (photo)260 line pairs per mm
Field (35mm film)2.5 degrees by 3.8 degrees (4.5 degrees diagonal)
Image scale2.7 degrees per inch
Magnification10x to over 250x using Tele Vue eyepieces and Barlows
Star diagonal2 inch, "everbrite" mirror type, with 1-1/4" inch adapter, both with brass clamp rings.
Focuser2 inch, rack and pinion type with brass clamp ring.
FinderOptional Starbeam or 55mm Plossl for 10x, 4.9 degree field
MountingAdjustable mounting ring with 1/4-20 tapped holes for standard (heavy-duty) photographic tripods or optional Tele Vue mounting systems
Weight10 lbs. O.T.A.
Length29", 26" O.T.A.
  
 
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