WILLIAM OPTICS WIFD REDCAT 61 Refractor Telescope Instruction Manual

June 12, 2024
WILLIAM OPTICS

WILLIAM OPTICS WIFD REDCAT 61 Refractor Telescope

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
PRODUCT

Warning
Never aim your telescope or finder scope at the Sun without proper Solar filters installed on the front of the telescope. Doing so for even a moment may permanently damage your vision. Proper Solar filters consist of filters made by reputable manufacturers, designed to fit tightly over the front of the dew shield. Solar the ye piece filters are not considered safe, and should not be used. With proper front mounted Solar filters,  the telescope will not be harmed by viewing the Sun.

SPECIFICATION

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-1

  • Focal Length : 300mm (Astrograph)
  • Diameter: 61 mm
  • Aperture : f / 4. 9
  • Focuser: WIFD (WO INTERNAL FOCUS DESIGN) (Compatible with EAF)
  • Image Circle: 45mm full frame
  • Tube Length: 365mm
  • Dew Shield Circumference: 2 91 mm
  • Dew Shield Diameter: cp92mm
  • Weight : 5.431bs / 2.465kg (OTA only) 7.471bs / 3.390kg (OTA with ring, dovetail and saddle)

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-2 WILLIAM-OPTICS-WIFD-REDCAT-61
-Refractor-Telescope-FIG-3

NOTE
We are utilizing a unique Petzval design featuring four optical elements in the William Optics (WO) Cat series telescopes.This design incorporates the use of high-quality FPL-53 glass for superior optical performance. Before storing your telescope, it is crucial to allow it sufficient time to acclimatize to room temperature. Please ensure that the telescope is thoroughly dry, free of dew or moisture, before storing. This ensures the safety and longevity of the telescope’s components. Always store the telescope in a consistent-temperature and dry environment to prevent any potential damage to the optical elements. Remember to leave the tube uncovered and opened during the acclimatization period. As always, taking appropriate care of your telescope will ensure its optimal performance and extend its lifespan.

PACKAGE CONTENTS

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-4

  • A. Dust Cover with Bahtinov Mask
  • B. Dew Shield
  • C. Main Tube
  • D. Saddle Handle Bar
  • E. Camera Angle Rotation Device
  • F. Tilt Adapter (inside)
  • G. 210mm Vixen Style Dovtail Plate
  • H. Soft Carry Case

PARTS

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-5

  • A. Rear Dust Cap (M48)
  • B. Saddle Handle Bar
  • C. WIFD Focuser
  • D. Dew Shield
  • E. Lens Cover with Bahtinov Mask
  • F. Front Bahtinov Mask Cover
  • G. Mounting Rings/ Knobs
  • H. Camera Angle Rotator
  • I. 210mm Dovetail
  • J. 2 Speed 10:1 Ratio Fine Knob
  • K. M4 Screw Holes for Finder Bracket
  • L. Locking Screws on Saddle Handle Bar (M4)
  • M. Camera Angle Rotation Locking Screw
  • N. M6 Screw Holes for Finder Bracket
  • 0 . Focuser Adjusting Knob with Thermometer
  • P. M48 Adapter (for Camera Mount)

TELESCOPE DIAGRAM

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-6WILLIAM-OPTICS-WIFD-REDCAT-61
-Refractor-Telescope-FIG-7WILLIAM-OPTICS-
WIFD-REDCAT-61-Refractor-Telescope-FIG-8

R & P GEAR SPACING SCREWS

  • Adjustment Screws (3 mm Allen Key) – Pull Screw

  • Adjustment Screws (2 mm Allen Key) – Push Screw

  • Can be Removed to Attach the Electronic Motorized
    A device such as EAF (Please refer to the instructions on page 12)

  • Lock & Tension Screw

  • Do Not Touch

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-11

The focuser smoothness adjustment ONLY when necessary by progressively push & pull screws until you reach the desired smoothness.

NOTE:
DO NOT ADJUST IT BEFORE ASKING WO

OPERATION GUIDE

Where Is the Tilt Adapter?

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-12

Where Is the Tilt Adapter?

WILLIAM-OPTICS-WIFD-REDCAT-61-Refractor-Telescope-
FIG-13

How to Install EAF

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FIG-14WILLIAM-OPTICS-WIFD-REDCAT-61
-Refractor-Telescope-FIG-15

ACCESSORIES MAP

Cinematography

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FIG-16

Documents / Resources

| WILLIAM OPTICS WIFD REDCAT 61 Refractor Telescope [pdf] Instruction Manual
61RD, WIFD REDCAT 61 Refractor Telescope, WIFD REDCAT 61, Refractor Telescope, Telescope
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