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TeleVue TV-NP127is Imaging System APO Refractor
- Manufacturer: TeleVue
- MPN: NPI-5054
- SKU: NPI-5054
- Last price was: $7,373.00
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Availability:
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New from TeleVue is the updated NP127. Never ones to rest, Tele Vue took the opportunity to tweak the scope in small but meaningful ways. Both the optical and mechanical designs have been revised to reduce atmospheric defocusing sensitivity (visually the difference is virtually indiscernible). The new lens prescription delivers smaller spot sizes over a broader wavelength range than previously, while a new stainless steel front cell helps provide better thermal stability in extreme climates. Advanced multi-coatings are applied to maximize contrast and transmission. Still the fastest in the industry, there is just no competitive comparison considering its f/5.2 speed and flat-field.
The instrument has also been mechanically updated from its longer captive dew shield to its new 10:1 focuser pinion assembly, made for Tele Vue by Starlight Instruments. Along with an all new gloss black anodized metalwork treatment, the handsome new shapes of the dew shield and rear cell bring a refined elegance to this high performance APO refractor.
The non-vignetting focuser retains its 3” input and 2.4” output to reduce bulk and permits imaging across the largest commercially available CCD chips (52mm diagonal). No need for a heavier, more cumbersome 3” focuser. Every 2.4” focuser we make is tested to hold and drive a minimum of 6 lbs of weight in vertical orientation.
Except for a new Focusmate Driver attachment (available shortly), all other Imaging System accessories fit as previously.
PLEASE NOTE: DOES NOT INCLUDE CLAMSHELL TUBE HOLDER, RINGS OR DIAGONAL.
| Type | APO (Nagler-Petzval) Refractor (Elements/Groups: 4/2) |
| Objective (mm) | 127 |
| Focal Length (mm) | 660 |
| Focal Ratio (f/#) | 5.2 |
| Drawtube/Focuser | 2.4-inch, Focusmate dual-speed rack/pinion |
| Length OTA (inch) | 33.5 |
| Length with diagonal (inch) | 36.5 (with 2-inch diagonal) |
| Weight OTA/Std. Config (lbs) | 15.4 / 18.3 |
| Maximum Visual Field (deg.) | 4 (with 2-inch 55mm Plössl) |
| Maximum Recommended Power (x) | 300 |
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
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