Tele Vue 102iis - Manual (Page 3)

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The rings have grooves with #10-32 screw holes for attaching accessories such as the Tele Vue
Starbeam or Piggy-Cam. A central bar spans across the top of the two rings and permits varying the spacings
between the rings in order to fit a variety of mount heads.
The bottom of the rings have ¼-20 threaded holes to accept mounting studs or screws. Telescope
balance is achieved by unlocking the “bat handle” screws and sliding the tube fore or aft. Once
repositioned, retighten the bat handle screws.
3.0 Visual Observing Set Up
The versatile 102iis can be set up in two configurations for visual observing: two eye viewing with the Bino
Vue as in the previous 102i model, and single eye which permits both 1¼” and 2” eyepiece use. The
optional components necessary include a Tele Vue 2” Everbrite Star Diagonal, Tele Vue “High-Hat” 2”- 1¼”
reducing adapter, Tele Vue Bino Vue Body and eyepieces. For daytime viewing with Bino Vue see 3.0A.
The telescope is delivered with the 2” Accessory Adapter already installed in the focuser. To remove
it, back out the four lock screws and pull it out. To reinstall it, note
the four grooves with holes machined 90° apart. The grooves will
help index the holes in the adapter to the thumb screws in the end
ring. This will ease installation in the dark. Loosen the four end ring
lock screws sufficiently to remove any accessory that may be in
place, but do not retract them fully into the focuser body. By
allowing them to protrude into the body, they act as locators.
Insert the 2” Accessory Adapter into the end of the
focuser. If it does not go all the way in, rotate the
adapter. When the grooves in the adapter align
with the protruding screws, the adapter will seat
fully into the focuser. Tighten the four screws a few
turns so they enter the holes in the adapter. The
lock screws will now act against the brass clamp
ring in the 2” Accessory Adapter.
IMPORTANT CAUTION: IMPORTANT CAUTION: IMPORTANT CAUTION: IMPORTANT CAUTION: IMPORTANT CAUTION: When replacing the orange plastic plug into the 2” Accessory Adapter, push it
in far enough to seat. Do not
not not not not use the lock screws to clamp the plug in place as the clamp screws will distort
the brass clamp ring in the 2” accessory adapter.
3.0A Bino Vue Set Up
3.0A Bino Vue Set Up 3.0A Bino Vue Set Up 3.0A Bino Vue Set Up 3.0A Bino Vue Set Up - To use the scope with the Bino Vue, install the 2” Accessory Adapter. Slip a Tele
Vue 2” Everbrite diagonal into the focuser and tighten the lock screws. Insert the High-Hat adapter and then
the Bino Vue into it. Remember to remove the 2x amplifier if it is installed on your Bino Vue. To maintain the
performance of the telescope at the highest magnifications, use the Bino Vue Prism Corrector (BPC-0007).
For comfortable daytime viewing, we recommend the 60° 1¼” Everbrite diagonal. This configuration
requires the ACF-2125 Flat-Top 2”-1¼” adapter be used in place of the “High-Hat” type adapter.
3.0B Single Eye Viewing
3.0B Single Eye Viewing 3.0B Single Eye Viewing 3.0B Single Eye Viewing 3.0B Single Eye Viewing - In order to achieve enough back focus to use the Bino Vue at 1x, five inches was
cut off the telescope tube of the standard 102. To reach focus with single eye viewing we need to add that
length back via the extension tube provided standard with the 102iis. This special extension tube has the
large Imaging System adapter on one end and a 2” inside diameter on the other. Simply insert the extension
tube into the focuser end ring and tighten the four screws. Slip a Tele Vue 2” Everbrite diagonal in to the
extension tube and tighten the two lock screws. You can now use 2” Tele Vue eyepieces. Add the High Hat
adapter to use 1¼” eyepieces.
3.1 Eyepieces
With a range of 16x to 250x or more (if the atmosphere allows), Tele Vue eyepieces provide a magnification
for all purposes. See the chart at the end of this manual or call Tele Vue for recommendations. In general,
we suggest choosing low and medium power eyepieces in ratios of field stop diameters. For example,
factors of 1.4 or 2.0. When choosing higher power eyepieces, use ratios of magnification. (see reference
chart in “Choosing Your Eyepieces”)
Insert the 2” Accessory Adapter into the 2.4” focuser for
Bino Vue use.