NCLT - a Telescope
to darker Skies
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 and to bring remote & high observing sites in reach. NCLT is based on new structural design principles using composite materials and high quality attachment parts and
fasteners from anodised alloys, hazed titanium, stainless steel, and
certain heavy duty industrial plastics. Single
Arm versus Truss Tube
was normally not a
discussion with portable scopes since the advantages achieved with
tube constructions appeared obvious. However, workmaterials for telescopes
have changed, will change further, and so will
Compact Dimensions, Light Weight, and High Luminosity
The NCLT telescope design offers significant advantages:
- Very low weight
- Low static
- Low intertia of the OTA (e.g. when observing fast moving objects)
- Ultra compact overall size
- Great stiffness
- High precision and stability - providing best tracking and observing experience
- Nearly zero temperature drift
- No sensitivity against humidity or
liquid water in every climatic condition.
Both, Single Arm OTA and Truss OTA solutions are possible with the NCLT design. The Single
Arm version allows very quick set up extending 'real' observing time.
Truss Tube Versions are meant for photographic applications & for bigger apertures. It is possible to
install dovetail adapter plates to attach the OTA to an equatorial mount. Also an optional
Nylon fabric lightshroud can be used for covering the truss tube.
The NCLT design works great at fast optical ratios around F/3
A supportive truss structure is included with all NCLT Single Arm versions. This 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 when you observe with lower or mid magnification,
but it will reduce vibrations at high magnifications. The obstruction (shading) caused from the Valien struts is
Valien Stops Vibration
Focuser and Coma Corrector
Feathertouch Focuser 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. It is ideal with NCLT Travel Instruments for ratios around F/3. We use a special lightweight focuser in combination with the SIPS from Starlight Instruments.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
Protection against Wind and Light
Lightweight beach shelter tents are ideal to use with
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 also better as 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...
Your visual observing experiences may improve when you can lean back and relax your body
while you are 'VISITING THE SKIES'.
We recommend such a folding seat that supports your back like a deck chair.
NCLT can serve as a high performance digiscoping instrument for wildlife and
birding to catch the hidden scenes of nature.
A mirror telescope
of 12" will generate better, brighter, and higher resolution digiscoping footage of shy or even nocturnal animals.
is not much difference to tell to a normal fast ratio 12” Dobsonian
telescope and you will get the same performance depending on the mirror
quality, observing skills, the 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 the
radial spike patterns caused from the common 4 or 3 arm spider mounted
center of gravity in the NCLT instruments is very low so that the structure
collimation-stable and vibration-free observing but without the usual heavy chunky equipment to carry around. It will require a low observing position, e.g. to sit on a
or on a mat on the ground depending from the angle of altitude and the size of the optics and ratio. Of course it is also possible to put the scope on a higher level. Children
like NCLT MOUNTAIN telescopes due to the low
eyepiece position. An ideal telescope
for young astronomers.
Most observing is possible without ballast weight, though the sand or water
ballast system, or a plastic-encased dumbbell weight disc will relieve the strong 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 ballast.
5lbs ballast weight is enough for balancing 12" MOUNTAIN telescopes with
heavy eyepieces plus a coma corrector or even a camera. 16" and bigger
telescope sizes 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 you, typically, observe planets at such lower positions with rather small
eyepieces or web cams allow viewing on screen or stacking images. The included bungee
counter system makes eyepiece change easy, without the scope
loosing its position.
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.
Here is a video that shows how a NCLT MOUNTAIN telescope moves
LiteScope MOUNTAIN 12" travel telescope was selected as a 'HOT PRODUCT 2009' by Sky &
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|Copyright: 2018 Vivian Bock. All rights reserved.|
Revised: December, 2018
Information in this document is subject to change without notice.
products and companies referred to herein are trademarks or registered
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