ED80Sf ED100Sf Vixen Optics a Division of MrStarGuy, Inc. www.vixenoptics.
Page 1 PREFACE Thank you very much for your purchase of a Vixen astronomical telescope This manual applies to the ED80Sf and ED100Sf telescopes. You may occasionally find descriptions in the text not relevant to your particular model. Read the instructions for your mount along with this manual if you purchased the telescope as a complete package. WARNING! Never look directly at the sun with the telescope or its finder or guide scope. Permanent and irreversible eye damage may result.
Page 2 ATTACHING THE FINDER SCOPE (1)Back out the adjustment screw on the finder bracket to allow passage of the finder scope. (Make sure the adjustment screws do not fall off the bracket.) (2)Side the rubber O‐ring onto the eyepiece end of the finder. There are two grooves on the finder tube. Position the O‐ring on the narrow groove at the middle of the finder tube. (3) Pull up the fixed stud on the bracket ring and pull it so that the finder tube slides into the bracket ring from its eyepiece end.
Page 3 ACCESSORY CHART – You may need an eyepiece as sold separately. Visual Configuration Example: Calculating the eyepiece magnification of a telescope with 1035mm focal length.
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 ED80Sf ED100Sf 3228 3229 ED APOchromatic Refractor 80mm 100mm 600mm (f/7.5) 900mm (f/9.0) 1.45 arc.; 11.3 1.16 arc sec; 11.8 131x 204x 100mmx570mm; 3.4 kg 100mm x 880mm; 3.7kg 9x50mm 9x50mm 60mm, 42mm threaded for T‐ring/50.8mm, 31.7mm push‐fit for T ring/31.
