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OVERVIEW
This manual has been written to help you enjoy using your TEC APO 140 refractor.
APO 140 has a number of features that in a given combination are rarely found in one scope:
Precision apochromatic objective with modern coating that makes lenses almost invisible
Retractable baffle
Light tube assembly
FeatherTouch 360° rotatable focuser with coarse and fine focusing
Collet type eyepice holder.
Line of accessories, including:
Precision tube rings with adjustable latches
Dovetail plate (same width and fit as Losmandy plates)
Finder bracket with new principle of finder adjustment
Choice of two kind of cases.
All parts of the telescope, including: optics, coatings, etc. are made in the USA.
GETTING TO KNOW YOUR TELESCOPE
The parts of the telescope and their functions are identified and described below.
2
1
TEC APO 140
1 Front Cover. - made of Aluminum, push-pull type
during transportation.
2 Retractable Sliding Baffle. This feature makes the
OTA shorter for handling and transportation. The
open end of the baffle is rounded to improve
aerodynamics of the front end of telescope. Rounded
edge creates less turbulence compared to straight
cut baffles.
3 Baffle flange. It holds the baffle with four 4-40
Button Head Screws.
4 Tube assembly. The tube interior is coated with
special light absorbent coating and has 4 sharp edge
baffles, which block internal reflections.
5 OTA Focusing Mounting Flange. (It is part # 6.1 in
the focuser description).
6 Focuser. See following Instructions written by
Detlef Schmidt (Starlight Instruments Inc.).
The focuser's tube is coated inside with the same
special coating as the tube assembly.
7 Plug. It is a small part that keeps the focuser end closed.
3
2
4
It protects the optics and holds the baffle
.
To remove cover put
thumb and index fingers
into the sliding latches and
move them in the shown
directions.
5
6
7
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