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Page 4
SPECIFICATIONS
Specifications
Item #
Optical Design
Effective Aperture
Focal Length
Resolving Power
Light Gathering Power
Tube Diameter, Length & Weight
Finderscope
Threads
Accessories
Photography
Total Weight
ABOUT THE CRAYFORD FOCUSER
Both the ED80Sf and ED100Sf telescopes have the Crayford focuser which uses friction for the focusing
mechanism. Follow these instructions for its use.
Tighten the tension adjustment screw if the drawtube is loose.
Even with the tension knob fully tightened , it is possible , though not recommended, to rotate the
focus knobs.
Never apply lubricant to the focuser.
MrStarGuy, Inc. 1010 Calle Cordillera, San Clemente, CA 92673
ED80Sf
3228
ED APOchromatic Refractor
80mm
600mm (f/7.5)
1.45 arc.; 11.3
131x
100mmx570mm; 3.4 kg
9x50mm
60mm, 42mm threaded for T‐ring/50.8mm, 31.7mm push‐fit for T
ring/31.7mm push‐fit
Flip Mirror, Aluminum Carry Case, Mount Rings, Dovetail Plate
8.9kg 19.6 lbs total weight
7.5 lbs optical tube
www.vixenoptics.com
ED100Sf
3229
100mm
900mm (f/9.0)
1.16 arc sec; 11.8
204x
100mm x 880mm; 3.7kg
9x50mm
11.5 kg 25.3 lbs total w/case
8.2 lbs optical tube
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