Tele Vue 60is - Manual (Page 3)

Page 3
Congratulations on purchasing the Tele Vue-60is (imaging system) APO telescope. This instrument is diffraction
limited, and will perform visually up to the same standard as its sibling 1¼" focuser model, while having the enormous
field capability of accepting 2" eyepieces, with an optional 2" diagonal.
Its primary goal, of course, is imaging. To that end the Tele Vue-60is features a 2" focuser with double locking
screws bearing against brass clamp rings in both the body and drawtube, Focusmate tm 6:1 fine focus mechanism, screw-
on field flattener which covers typical cameras such as the Canon 20DA without vignetting, and a heavy duty balance
bar with a selection of bolt holes for balance and to mate with imaging platforms and adapters. An optional digital
micrometer, with available RS232 port connection, can measure focus position down to 0.00005".
WARNING: NEVER look at or photograph the sun, or point the telescope toward or near the sun without
proper solar observing equipment rigidly secured in front of the objective lens. Instant and permanent
eye damage will result from viewing the sun directly, even during a solar eclipse, or when viewing through
thin clouds, or when the sun is near the horizon. Your CCD camera can also be damaged.
Getting Acquainted
1) Dovetail Balance Bar: Moving the telescope fore and aft by means of the Dovetail Balance Bar will permit balancing
for smooth operation of your mount. To move the scope, loosen the two Dovetail Position Lock Screws on the side of the
Dovetail Channel. Slide the scope fore or aft along the Dovetail Balance Bar until balance is achieved. Tighten the
Position Lock Screws. The top two Safety Stop Screws will prevent the telescope from accidentally sliding off the
Dovetail Balance Bar. The bottom two Safety Stop Screws will prevent the Dovetail Balance Bar from sliding though the
Tele Vue QRB-1002 Quick Release Bracket which can be used to piggyback the Tele Vue-60is on other telescopes.
The threaded holes in the bottom of the Dovetail Balance Bar are spaced for Tele Vue alt-azimuth mounts and also correspond
to Tele Vue equatorial mount adapters which are listed on the Tele Vue website. The series of identically spaced mounting
holes provide additional fore/aft balancing freedom. Should more weight need to be added to the front of the scope even with
the scope pushed all the way forward, then attach the Dovetail Balance Bar to your mounting adapter plate by the rear group
of holes.
2) Tube Ring: The Tube Ring is machined from a single piece of aluminum with two, 3-point suspension rings. The scope
is shipped with the top screws bottomed against the Tube Ring. For maximum adjustment range: hold the telescope,
loosen both top screws halfway through their travel, and tighten each of the lower screws until the telescope is held firmly
against the top screws. Some tube rotation is possible, however complete image orientation can be had by loosening
the Field Flattener and rotating the camera for the most pleasing image composition. (See section 6)
3) Dew Shield: Extend the Dew Shield by simply pulling it forward. Stops on either end retain it on the tube. Two #10-32 button
head screws cover threaded holes in the dew shield. Use these holes to mount a light weight finder such as the Tele Vue Qwik-
Point. The button head screws may be discarded after installing such a finder.
4) Lens Cap: The Tele Vue-60is objective sits close to the end of the front cell. It is safest to pull the dew shield forward
before removing the lens cap. The plastic will not scratch the objective should it accidentally fall against the first
surface of the objective. Squeeze the two tabs to remove the lens cap from the dew shield.
5) Focuser: The Tele Vue-60is provides a smooth operating rack and pinion focuser plus the dual speed 6:1 reduction
of the Focusmate
tm . This level of control permits focusing as fine as 0.00005” as measured by the optional Digital
Micrometer Kit.
Appropriate focus tension and locking is achieved by loosening or tightening the two 10-32 Focus Tension
Threaded holes for various Tele Vue adapter plates and Tele Vue mounts
1/4-20 threaded holes and corresponding video pin holes for Bogen mounts