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MOUNTAIN II StarFari 12,5inch

NCLT - The Telescope 'to go' to darker Skies

'New Cambridge Lightweight Telescope' is a portable telescope design for Newtonian optics to access remote seeing sites with big optical apertures, but less equipment weight and size to carry. Mountainbiking or hiking with the lightest NCLT 12" versions is possible to bring remote & high observing sites in reach. NCLT is based on new structural design principles by using composite materials, high quality optical and mechanical components, and fasteners from anodised alloys, hazed titanium, stainless steel, and certain heavy duty industrial plastics. Single Arm OTA versus Truss Tube OTA was normally not a big discussion with portable reflector telescopes since the advantages achieved with a classic truss tube appear obvious. However, new workmaterials will offer smarter design options and lighter weight...  

Observing
                 

Compact Dimensions, Light Weight, and High Luminosity

The NCLT telescope design offers
practical advantages:
  •  Very low weight
  •  Low static forces in the system
  •  Low inertia of the OTA (very helpful when observing moving objects)
  •  Ultra compact overall volume and size
  •  Great stiffness of the structural geometry
  •  Nearly zero temperature drift  
  •  No sensitivity against humidity in humanly bearable climatic condition

Both, single pole OTA AND truss OTA solutions are possible with the NCLT design. The
single pole version allows very quick set up, extending the 'real' observing time. 
Truss tube
versions are mainly meant for photographic applications & bigger apertures from 16". It is possible to install a dovetail adapter plate to attach the OTA to an equatorial mount. Also an optional Nylon fabric lightshroud can be customized for covering the truss tube.

The NCLT design performs best with fast optical ratios around F/3 - F/4  








         














A supportive truss structure is included with all NCLT Single Arm versions
. That anti-vibration solution consists of two thin carbon fiber rods to attach to the pole and to the tube base and Alt wheel. It is stopping vibrations instantly. You don't need them if you observe with lower or mid magnification. However, it will reduce vibrations at high magnification. The obstruction (shading) caused from the Valien struts is neglectable.










 NCLT with Truss TubeSingle Arm Telescope

Valien









 
Valien


Focuser and Coma Corrector 

Lightweight Feathertouch Focusers from Starlightinstruments are meeting the requirements for visual and photographic purposes for advanced travel and backpack instruments in very fast F/3 telescopes. SIPS is a combination of an optical ParaCorr II Coma Corrector from TeleVue with an attached lightweight focuser, ideal with NCLT Travel 16" Instruments for ratios around F/3. 

SIPS

For 12" F/3.5 instruments we recommend the lighter Baader MPCC in a HC-2 focuser.      

Iris Baffle, Dew Shield, Dew Heaters, and more Accessories can be installed or attached as Upgrades
dewshieldIRIS

Protection against Wind and Light 

Lightweight beach shelter tents are ideal to use with NCLT MOUNTAIN telescopes. Set up in minutes, they protect against straylight and wind while weighing only a couple of pounds. They are enhancing the contrast for deep sky observing with the low standing 12" MOUNTAIN instrument. Sitting on a mat leads to great convenience (vs. balancing on a ladder in the darkness). Sitting is better than standing if you want max. visual sensitivity, comfort, and concentration for getting the best possible impressions of DS objects. A smart way of 'dome' observing with two shelter tents...

observing shelter against straylight and wind
Your visual observing experience may improve if you can lean back and relax your body.
We recommend a flat folding seat that supports your back like a deck chair.


extreme low altitude viewing observing deep to the ground observing in mid altitude observing higher

NCLT can serve as a high performance digiscoping instrument for wildlife and birding to catch hidden scenes of nature.

A mirror telescope of 12" will generate brighter high resolution digiscoping footage.



Observing Experience  


There is not much difference to tell to a normal fast ratio 12” Dobsonian telescope and you will get the same performance depending on mirror quality, observing skills, performance of the eye, and the atmospheric seeing. The diffraction image caused from the two blade secondary cage is not striking - just a faint unidirectional spike pattern, unlike most radial spike patterns caused from common 4 or 3 arm spider mounted secondary optics.

Young Observers

The center of gravity in NCLT instruments is very low so that the structure provides collimation-stable and vibration-free observing. It will require a low observing position, e.g. to sit on a small chair, or on a mat on the ground depending from the altitude of the object and the size of the optics and focal ratio. Of course, it is possible to put the scope on a higher level. Children love NCLT MOUNTAIN telescopes due to their low eyepiece position.  


KidsKids and MOUNTAINobservingSeeing the many 'balls' in space

Balance

Most observation is possible without ballast weight. However, the included water ballast system, or a plastic-encased dumbbell weight disc (from a gym shop) will relieve the bungee counter system, making it more convenient to balance the scope with heavy eyepieces. Normally, there is no need to change the counter weight when changing the eyepieces. Light or mid weight eyepieces do not require any ballast. About 5lbs ballast weight is enough for balancing 12" MOUNTAIN telescopes with heavy eyepieces plus coma corrector or even a camera. 16inch and bigger NCLT telescopes will not need ballast for most observing tasks. We offer (donut shaped) water ballast bags for the 12" MOUNTAIN size. The eyepiece weight may be limited in rather low positions, but we, typically, do observe planets at such low positions with rather smaller eyepieces. Electronic eyepieces or smartphone adapters provide viewing on screen. The included bungee counter system relieves the change of eyepieces without the instrument loosing its position. 
heavy eyepieces

A counter weight (5lbs) balancing a ParaCorr PLUS Ethos13 Eyepiece.
The bungee cord system allows
 fine adjustment. Here pictured with F/4 optics in a MOUNTAIN 12" NCLT instrument.

A video showing how a NCLT MOUNTAIN telescope moves

NCLT LiteScope MOUNTAIN 12" travel telescope was selected as a 'HOT PRODUCT 2009' by
Sky & Telescope USA
 
Hot Product 2009
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Copyright: 2021 Vivian Bock.  All rights reserved.
Revised: February, 2021
Information in this document is subject to change without notice.
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