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WILLIAM OPTICS - INDIA
YOU ARE HERE >> HOME | WILLIAM OPTICS | WILLIAM OPTICS RED CAT 71 APO

William Optics RedCat 71 APO f/4.9 Refracting Telescope
Colour Available : RED
123600 + 18% GST
Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope Red Cat 71mm APO Telescope
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Red Cat 71mm APO Telescope  
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Welcome Cat71 to join WO Cat family!!!
The WO Cat71 is a 71-mm f/4.9 refractor using a Petzval design with a doublet front element incorporating FPL-53 glass, plus a single central element and a single rear lens. By this design, our WO Cat71 provides a flat image plane without any additional flattener and the image circle is over 45mm. WO Cat71 is designed primarily for imaging, making it an astrograph.

This scope provides an excellent colour correction and pinpoint stars at the very edge of a 45mm image circle.

If you want to take images with the best quality, this beautiful and powerful telescope is what you want.

The premium quality of Anodizing finish and calibrated helical focuser with 2GT gear ring which is much more precise than those on typical camera lenses, and it is lockable, making it easy to nail and maintain focus.

 
KEY Features
  • 71mm f/4.9 Astrograph.
  • FPL-53 glass for colour free apochromatic performance.
  • 4 elements in 3 groups (2-1-1- configuration; new, unique, patented design - not a conventional objective/flattener/reducer design).
  • Covers 45mm full frame imaging circle.
  • Precise helical focusing and camera rotation; includes a 48mm make thread that accepts a wide T-ring.
  • Includes mounting rings, 21cm long Red Vixen style dovetail and Cat saddle.
  • Weight =  6.2lbs / 2.8kg (OTA only);  8.2lbs /  3.7kg (OTA with ring, dovetail and saddle).
 
What's in the Box?
[A] M48 Dust Cap/Thread
[B] Tilt Adapter
[C] Camera Angle Rotator
[D] Rotator Tension Knob
[E] Saddle Handlebar (with two M4 thumb screws)
[F] Helical Focuser with 2GT Gear Ring
[G] Arca Swiss/Vixen Plate
[H] Mounting Rings
[I] Due Shield with Focus Tension Ring
[J] Super Bright Bahtinov Mask
[K] Soft Carry Bag
 
 
TECHNICAL DATA
Lens Type Petzval Design
Focal Length 350mm
Diameter 71mm
Aperture f/4.9
Flattener Petzval Flat Field
Focuser Helical Focuser with 2GT Gear Ring
Color Red
Lens Material FPL-53
Strehl Ratio 0.95+
Camera Format Full Frame DSLR / Mirrorless / CMOS / CCD
Test Report Not Available
T-Mounts Supported Canon EF, RF Nikon F, Z Sony E Pentax K Micro Four Thirds (M4/3) FUJI X
Tube Length 435mm
OTA Weight 2.8kg
Total Weight 3.7kg
 
 
 
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