Tele Vue NPC4054 NP101 4in,5.4 Refractor Telescope
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Tele Vue NP101 4" f/5.4 Refractor scope (Ivory tube) with 10:1 Dual Speed Pinion Assembly Focuser.

SKU: TVNP101
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Tele Vue NP101 Specifications

  • Telescope type

    4-element apochromat refractor using special dispersion glasses

  • Clear aperture

    101mm (4 inches)

  • Aperture gain

    208 (compared to a 7mm exit pupil)

  • Focal length

    540mm (21.3 inches)

  • Focal ratio

    f/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 scale

    2.7 degrees per inch

  • Magnification

    10x to over 250x using Tele Vue eyepieces and Barlows

  • Star diagonal

    2 inch, "everbrite" mirror type, with 1-1/4" inch adapter, both with brass clamp rings.

  • Focuser

    2 inch, rack and pinion type with brass clamp ring.

  • Finder

    Optional Starbeam or 55mm Plossl for 10x, 4.9 degree field

  • Mounting

    Adjustable mounting ring with 1/4-20 tapped holes for standard (heavy-duty) photographic tripods or optional Tele Vue mounting systems

  • Weight

    10 lbs. O.T.A.

  • Length

    29", 26" O.T.A.

6 Accessories for Tele Vue NP101 4" f/5.4 Refractor scope (Ivory tube) with 10:1 Dual Speed Pinion Assembly Focuser.

  • All Accessories (6)
  • Eyepieces & Accessories (3)
  • Adapters & Mounts (1)
  • Eyepieces (1)
  • Photography Adapters (1)
Tele Vue Eyepiece Caddy Set
Tele Vue Eyepiece Caddy Set
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Tele Vue Mounting Adapter for Vixen Dovetail Mount
Tele Vue Mounting Adapter for Vixen Dovetail Mount
$69.00
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Tele Vue 2.5x Powermate, 1.25" Image Amplifier
Tele Vue 2.5x Powermate, 1.25" Image Amplifier
$260.00
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Celestron 45 Degree Angle Erect Image Diagonal 1.25"
Celestron 45 Degree Angle Erect Image Diagonal 1.25"
$39.95
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Tele Vue T-Adapter for Refractors with 2" Focusers
Tele Vue T-Adapter for Refractors with 2" Focusers
$69.00

About Tele Vue NP101

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.

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What's in the box:

  • custom-fitted case, screw-on lens cover, sliding dew/glare shield, 2" everbrite, 1 1/4" adapter.