© Tele Vue Optics, Inc.
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The Tele Vue-NP101(Nagler/Petzval) represents our closest realization yet of the "ideal" multi-purpose photo/visual telescope. Its snap-to-focus sharpness across even the widest true fields, and rich planetary contrast will take your breath away. Its quality, easy set-up, and airline portability
beckons your use.
Over 20 years ago we reinterpreted the incredible design flexibility of the Petzval portrait lens into an astronomical objective. No other design type affords the freedom to simultaneously correct for: coma, astigmatism, field curvature, secondary spectrum, spherical aberration, and spherochromatism. The artful combination of materials and design bestows the Tele Vue-NP101 with diffraction limited performance into the
furthest reaches of the visual spectrum.
Manufacturing advances in lens finishing, including interferometric monitoring of all surfaces, and Tele Vue's stringent assembly and quality control, insure
uniformly excellent results with every telescope, and a level of manufacturer direct service all too rare.
If your interests range from terrestrial to rich-field or planetary astronomical, or to photography, just put in your eyepiece or attach a camera and the NP101 is ready to satisfy right out of its case.
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Standard hardshell case is 38Lx9Hx10W-inches outside dimensions. |
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Optional Soft Carry Bag (model NPB-1001, outside
dimensions: 29Lx5½Hx9½W-inches) for NP 101 or TV-102i
can fit telescope, diagonal, adapter & 6-eyepiees -- or Starbeam &
2-eyepieces as shown. Includes carry handle and shoulder strap. |
| Model |
NPC-4054 |
| Objective |
101mm Aperture, APO 4-El. Nagler-Petzval design |
| Focal Length |
540mm |
| Focal Ratio |
F/5.4 |
| Max Visual Field |
4.9 degrees |
| Weight/Length |
10lb., 29" (26" OTA)" |
| Includes |
Custom Hardshell
case, screw-on lens cover
sliding dew shield,
2" focuser, 2" Everbrite diagonal, 1 1/4" adapter Ring Mount with (3) 1/4-20 holes and easy balance adjustment
Ivory powdercoat finish |
| Accessories |
Soft Carry Bag (NPB-1001) only 28" long. Holds eyepieces and diagonal separately.
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Product List & Code
| TV – NP101 | | NPC-4054 | | | TV-NP101 |  | | NPB-1001 | | | Soft Carry Bag for TV-NP101 |  |
See all Tele Vue dealers
Reviews
"OPTICS DON'T GET ANY BETTER THAN THIS"
— The Backyard Astronomer's Guide, 2002
Sky and Telescope Review of NP 101
— Excerpts from May 2002 Issue
Tele Vue NP 101
"Nagler's latest entry in the premium-refractor market is the NP 101. Like some previous Tele Vue refractors, the NP 101 is a four-element design with a full-aperture doublet objective up front and subaperture doublet near the back. . . . While a field flattener is an add-on accessory with some apos, with the NP 101 a flat field is an integral part of the design, and the scope delivers pinpoint star images across wide-field eyepiece views and on 35-mm film. . . . As I discovered at first glance through its optics, the NP 101 improves upon the now-discontinued Tele Vue-101 and Genesis models by completely eliminating chromatic aberration. And it achieves this ultimate level of apochromatic performance in a tube about 6 inches shorter than those earlier models."
"Fitted with Tele Vue's remarkable 31-mm Nagler eyepiece, the NP 101 showed pinpoint stars across a vast 4-1/2º field. . . . This is a great combination for panoramic 'rich-field' views of the Milky Way."
Tele Vue Optics
"Great optics are easy to evaluate -- the NP 101 showed no sign of any aberrations, period. End of review! But to elaborate -- under a star test at high power I saw no color, no astigmatism, no spherical aberration, not even any asymmetry in extrafocal patterns from sphero-chromatism. Bright stars appeared as clean, white disks right through focus, with no magenta or cyan fringing inside or outside of focus. In focus, stars appeared as tight, sharp Airy disks, surrounded by a subtle inner diffraction ring and no spurious fuzz -- a textbook-perfect pattern.
Saturn appeared etched into a dark sky. Differences in ring shading were obvious, as were several of the planet's faint moons. Jupiter's disk looked clean white with no discoloration from unfocused wavelengths or filtering effect of glass or coatings. Here was pure unadulterated light, just what an apo refractor should deliver.
The tube's internal blackening worked well. Low-power views showed no sign of flares or ghost images from bright objects just outside the field. This is clearly one of the world's best telescopes, able to match or exceed the performance of any other premium apo of this aperture."
Tele Vue Impressions
"Tele Vue NP 101 is a no-compromise design that performs well for all visual and photographic purposes. It can cruise effortlessly from superwide-angle scenes to high-resolution planetary views. Although it carries a premium price, the NP 101 may be all the telescope many observers ever want."
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— Excerpts from September 2004 Issue
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This excerpt concerning the TV-101, predecessor to the TV-NP101, is from Finding Your Place in the Galaxy, by Peter Leschak,
which appeared
in National Geographic Adventure magazine (September 2004. p.62). For more
information see the
National Geographic Adventure
website.
I had my starship.
It's a stunning instrument, a delightful blend of craftsmanship and
straightforward design — an apochromatic four-inch, four-lens objective of
540-millimeter focal length in a white aluminum tube. The flat black alt-azimuth
mount is a simple rotating fork, but so smooth and finely machined that just
aiming the scope is a pleasure, like spinning the steering wheel of a Lexus. The
interchangeable eyepieces are heavy in your palm, gleaming gems of chrome and
glass.
In his Celestial Handbook, Burnham wrote that amateur astronomers
enjoy a benefit that dabblers in other fields lack. For example, rock hounds
must usually be content with second- or third-rate specimens — they will not
own the Hope diamond or the complete skeleton of a triceratops. But the
part-time astronomer "has access at all times to the original objects of his
study; the masterworks of the heavens belong to him as much as to the great
observatories of the world. And there is no privilege like that of being allowed
to stand in the presence of the original."
I greedily wanted to begin a total-immersion baptism of light with the new
scope. A stretch of foul weather intervened, and, since we were approaching the
summer solstice at 48 degrees north latitude, the back-woods sky above our cabin
wasn't fully dark until after 10 p.m. I took "astronomy naps" in the afternoons
so I could be alert at the eyepiece until long after midnight if the clouds
should part.
On June 12 at 10:30 p.m. I set up the TV-101. It was clear, the atmosphere
acceptably stable. A waning gibbous moon was due to rise close to 11 p.m.,
washing out the sky, so there wasn't much time to hunt for dim, deep-sky objects
like galaxies, star clusters, or nebulae. I was also waiting for Jupiter to rise
over the aspen and fir that hem in our yard.
I swung the scope to the constellation of Lyra, homing in on M57, the famous
Ring Nebula. The Ring is a planetary nebula, an expanding shell of gas
surrounding an exceptionally hot star. Such structures are often doughnut-shaped
— a bright band with a dark core — the star sometimes visible in the center,
like a cosmic bull's-eye. I'd seen the Ring as a fuzzy dot in the old
60-millimeter three decades before, and when I zeroed in with the TV-101 at a
low power (27x), it appeared sharper and brighter than remembered, but still a
dot.
When I inserted a higher-power eyepiece, my breathing stopped. I could see
the Ring! The doughnut shape was distinct and magnificent. I was looking at a
classic planetary nebula for the first time, radiant and crisp. I laughed aloud,
delighted. I'd seen photographs, of course, practically drooled on them, but
this was real, an "original".
My current scope, a Tele Vue four-inch refractor, with accessories such as
special eyepieces, filters, a quality tripod, and other observational aids, cost
me around $4,200 and was worth every penny. Its clean simplicity makes it easy
to use, and it has offered me views of Saturn, the Great Nebula in Orion, the
Andromeda galaxy, and hundreds of other "targets" that I had previously seen
only in time-exposure photographs. |
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