Tele Vue 60 - Manual (Page 7)

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When changing eyepieces, always have the eyepiece you are
changing to in hand and ready to install. This will minimize the
chances for dust or dirt to settle on your diagonal mirror.
5.3 TERRESTRIAL OBSERVING
For terrestrial observing we suggest using a high quality multi-coated, 77mm UV
haze fi lter which screws into the front dew shield. This also helps protect the lens. (You
should remove the fi lter for the sharpest possible high power astronomical viewing.) Ter-
restrial observing generally takes advantage of the Tele Vue-60’s low and medium powers.
Low magnifi cations yield wide fi elds-of-view which help you to fi nd object easily.
The upper ends of the medium power magnifi cations reduce your fi eld of view
and are recommended when subject brightness allows. Also, these higher magnifi cations
often increase the blurring-effect of air currents, wind, and vibrations. To maximize view-
ing comfort, avoid using over 70x when viewing over asphalt paving or any warm surface,
or through an open window. In these cases, magnifi cation of air currents by the telescope
will signifi cantly degrade image steadiness and sharpness. Image sharpness may also be
reduced when viewing through window glass.
In any case, you will marvel at the clarity of your “window to the world,” whether
as a long distance microscope, a spotter for bird watching, or for viewing over water scenes.
5.4 ASTRONOMICAL VIEWING
The Tele Vue-60’s “diffraction limited” design coupled with its aperture, focal
length, and overall physical size make it a truly portable instrument. It’s easily set up, and
with its optional custom fi tted soft case, it is rugged enough for travel by land, sea or air.
Why not take it along to your favorite distant and exotic viewing sites?
Astronomical viewing presents challenges different from those of terrestrial
viewing. With the exception of the moon, planets, and brighter stars, your viewing targets
are not necessarily visible to your naked eye. Remember that views of nebulae, clusters
For correcting near- or farsightedness, there is generally no need
to wear your glasses, since focusing the telescope will compensate
for your eyesight.
If, however, if you suffer from eyesight astigmatism you will either
need to use your glasses or a Tele Vue Dioptrx to get the sharpest
view. Dioptrx has some advantages over standard eyewear. First,
it's made of the highest quality optical glass and is multicoated,
just like the lenses in your Tele Vue eyepieces. Dioptrx is fully
rotatable (tunable) to exactly match the axis of your astigmatism.
Finally, you will always be looking through the center of the
Dioptrx lens for optimal correction. Learn more about Dioptrx at
TeleVue.com.
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4. MOUNTING THE TELE VUE-60
To use magnifi cations higher than about 10x, you need to stabilize the telescope
by mounting it on a tripod. A quality photo tripod or any in our complete line of mounts
can be used. Several standard ¼-20 tapped holes are provided to accommodate all types
of tripods. If you should change eyepiece sizes or weights, or should mount a camera,
you may have to reposition the Tele Vue-60 for best balance. This will reduce the amount
of observable vibration, or tremors seen at higher magnifying powers, and gives you the
smoothest mount movement.
For mounting the Tele Vue-60 on any Tele Vue tripod, follow the instructions
supplied with each unit. All necessary hardware is included with the tripod.
In general, the heavier the tripod, the more stable and effective it is at high mag-
nifi cation (100x to 150x). For specifi c mounting instructions, refer to the documentation
provided with your mount.
4.1 TELE VUE MOUNTING OPTIONS
A) TELE-POD HEAD — Mounting the Tele Vue-60 on a tripod with a standard
camera head is fi ne for terrestrial viewing. However, problems arise when tilting up from
the horizon. The weight of the telescope will always be fi ghting gravity.
The yoke and cradle design of the Tele-Pod Head solves this problem by moving
the altitude pivot axis near to the center of gravity of the telescope. In this balanced state
the telescope will stay where it’s pointed. The Sky Tour digital setting circle system and
Eyepiece Caddy Set are great bolt-on accessories.
The Tele-Pod head simply threads onto either the center post of your camera tripod
(no need for the camera head) or onto the camera head itself.
B) TELE-POD MOUNT — Weighing 7 lbs. the Tele-Pod mount combines the
Tele-Pod head with a light weight camera tripod. It is the ideal mount for the Tele Vue-60
with the added ability to use the Sky Tour and Eyepiece Caddy Set.
C) PANORAMIC MOUNT — The Panoramic Mount puts the Tele-Pod head atop
a beautiful ash or walnut tripod. A convenient accessory tray is included.
4.2 CAMERA TRIPOD MOUNTING
The standard ¼-20 tapped holes in the mounting bar allows the Tele Vue-60 to be
mounted on any heavy duty camera tripod.
4.3 ADAPTERS FOR EQUATORIAL MOUNTING
A) Tele Vue offers an adapter plate (Part# AVT-1011) that allows the Tele Vue-60
to be mounted on Great Polaris or Sphinx equatorial mounts from Vixen.
Never underestimate the value of comfort in observing. Use the
star diagonal to avoid “craning” your neck for astronomical ob-
serving. An adjustable height observer’s stool such as Tele Vue’s
Air-Chair is a great way to keep from getting tired.