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VIXEN
A70Lf, A80Mf, R130Sf
Vixen Optics a Division of MrStarGuy, Inc. www.vixenoptics.com
MrStarGuy, Inc.
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Thank you very much for your purchase of a Vixen astronomical telescope PREFACE This manual applies to the A70Lf, A80Mf and R130Sf 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 resu
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ATTAC CHING TH HE FINDE ER SCOPE E (A70Lf) 1. Loosen the 2. Attach the finder chrom me finder scop pe as shown in n bracke et lock the figure. screw on the Tighten the finder telesco ope. braccket lock screw w secu urely. ATTAC CHING TH HE FINDE ER SCOPE E (A80Mf OR R130 0Sf) Back out th he two Slide the rubber O‐ringg onto the eyep piece end of th he adjustmen nt screws on finder. T There are two ggrooves on the e finder tube. the finder bracket to Position the O‐r
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HOW TO ALIGN THE FINDER SCOPE- Be sure to align the finder scope with the telescope before you start observing. ALIGNING THE FINDER SCOPE – A70Lf *Choose a conspicuous target in the distance and place the target in the center of the field of view of the telescope. In the illustration, a distant tower is brought into the center of the field of view of the telescope. *Next, look through the finder scope. You should find the same target within the finder’s field of view. In the illu
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ACCESSORY CHART A70Sf, A80Sf and R130Sf Visual configuration A70Sf, A80Sf and R130Sf Photographic configuration SPECIFICATIONS- The Specifications are subject to change without notice. Specifications A70Lf A80Mf R130Sf Item # 2602 2603 2604 Optical Design Achromatic Refractor Newtonian Reflector Effective Aperture 70mm 80mm 130mm Focal Length 900mm (f/12.9) 600mm (f/7.5) 650mm (f/5.0) Resolving Power 1.66 arc.; 11.0 1.45 arc sec; 11.3 0.89 arc sec; 12.3 Light Gatheri
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COLLIMATION The optics of the telescope are aligned correctly at Vixen’s factory before shipment. It is rare that telescopes go out of alignment, unless its tube is knocked strongly. Follow procedure below to determine if the telescope is out of collimation. Examine the Collimation Select a second‐ or third‐magnitude star and place it the center of the telescope’s field of view by using a moderately high power eyepiece. Focus the star precisely. And then defocus slightly and you will
