Instruction d'utilisation Orion SHORTTUBE 80

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instruction Manual
® ™
Orion shortt ube 80
Optical Tube Assembly
#9948
Dovetail shoe
for finder
Finder scope
lock knob
Focus
lock knob
Thumbscrew
Dew shield
Visual
back
Focus knobs
T-thread
Figure 1. The ShortTube 80 Optical Tube Assembly
Congratulations on your purchase of the Orion ShortTube 80 The Orion ShortTube 80 can be outfitted for nighttime star-
Optical Tube Assembly! This fine-quality versatile instrument gazing, daytime terrestrial observation, as a guidescope for
can be used f

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Focusing the Telescope Cleaning Lenses The ShortTube 80 OTA is outfitted with a 1.25" rack and pin- Any quality optical lens cleaning tissue and optical lens clean- ion focuser. Once you have installed your equipment use the ing fluid specifically designed for multi-coated optics can be black plastic knobs to adjust the focus of your visual or pho- used to clean the telescope’s objective lens. Never use regu- tographic accessories. This will rack the drawtube in and out, lar glass cleaner or cl