
Tele Vue Optics TV-NP101is OTA
Tele Vue Optics TV-NP101is OTA: Unmatched Performance in APO Refractors 30 Years of Excellence: Tele Vue has consistently led in developing APO refractors and eyepieces, reaching the pinnacle of performance....
Description
Tele Vue Optics TV-NP101is OTA:
Unmatched Performance in APO Refractors
- 30 Years of Excellence: Tele Vue has consistently led in developing APO refractors and eyepieces, reaching the pinnacle of performance.
- Renowned Quality: Celebrated in the Backyard Astronomer's Guide for unrivaled optics, and chosen by Sky and Telescope for their significant SBIG STL11000 CCD camera review.
- Advanced "is" Versions: The Tele Vue-60, NP101, and NP127 "is" versions maintain exceptional wide field and planetary visual capabilities, enhanced for easier and more flexible imaging.
- Optical Perfection for Imaging: Redesigned to optimally serve up to 50mm diagonal chips without compromising visual performance.
- Imaging System Scope Capabilities: Includes Focusmate Driver and Digital Indicator Kit, ideal for DSLR cameras on mounts like the Vixen Sphinx.
- Redesigned Optical Systems: The NP101 (540mm, f/5.4, 4") and NP127 (660mm, f/5.2, 5") feature 4-element systems with larger rear lens groups to minimize vignetting.
- Larger Focuser and Draw Tube: A new 3" front aperture and 2.4" rear aperture focuser eliminates light cone restrictions, capable of holding 12 lbs. while offering fine focusing control.
- Versatile and Precise Focusing: Quick transition from visual to imaging operation with full camera rotation, plus residual focal plane tilt correction and repeatable focus measurement capability.
- Innovative Imaging Insert Ring: Ensures squareness to the optical axis with three lock screws and compatibility with Tele Vue's Imaging System accessories.
- Focusmate 10:1 Focuser and Accessories: Offers ultra-sensitive adjustment, measurable with an optional Digital Micrometer Kit, and electronic motor control with the Focusmate Driver.
- Tele Vue's Commitment to Quality: Continues to create visual and imaging instruments that exceed expectations, backed by dedicated local machinists and in-house staff.
Specifications
Type | APO (Nagler-Petzval) Refractor (Elements/Groups: 4/2) |
Objective (mm) | 101 |
Focal Length (mm) | 540 |
Focal Ratio (f/#) | 5.4 |
Length OTA (inch) | 25.5 |
Length with diagonal (inch) | 28.5 |
Weight OTA/Std. Config (lbs) | 10.7 / 10.7 |
Drawtube/Focuser | 2.4-inch, Focusmate dual-speed rack/pinion |
Maximum Visual Field (deg.) | 4.9 (with 2-inch 55mm Plössl or 41mm Panoptic) |
Maximum Recommended Power (x) | 250 |
What's in the Box?
- 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 3-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

Tele Vue Optics TV-NP101is OTA
$4,267.00