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William Optics Mighty Cat 71 - 30th Anniversary Limited Edition

Name: William Optics Mighty Cat 71 - 30th Anniversary Limited Edition
Brand: William Optics
SKU: M-CAT-71
Price: 2598 EUR

The fast William Petzval astrograph MightyCat 71 T-MC-71RD-30A is ideal for imaging faint nebulae, dark dust lanes, and expansive celestial structures.

Aperture 71 mm / focal length 230 mm / focal ratio f/3.2

Captures large areas

Short exposure time even with low-light subjects

Modified Petzval design with two ED and two lanthanum glass elements - a seven-element lens!

Very well-corrected image field with a diameter of 43.2 mm - also suitable for full-frame cameras

Focusing via internal focusing (William Internal Focus Design - WIFD) as found in telephoto lenses, compatible with EAF

Correct working distance automatically achieved when the image is in focus

Tilting function for individual adjustment of the camera sensor to the telescope

360° camera rotation for the correct image framing

Camera mount via M54 or M48 external thread - working distance approximately 55 mm

Flexible dovetail bar at the base, compatible with Vixen saddle plates and Arca-Swiss quick-release systems

Bahtinov mask for astrophotography included

Tube length only 315 mm / weight with tube ring and dovetail 4.1 kg - suitable for travel

This exclusive anniversary model is strictly limited to only 100 sets worldwide. Once they are gone, they are gone.

Manufacturer: William Optics

Product number: M-CAT-71

EUR 2.598,00

incl. 19 % VAT (DE)

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excl. 7.95 € shipping costs (DE)

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William Optics Mighty Cat 71 - 30th Anniversary Limited Edition

The fast William Petzval astrograph MightyCat 71 T-MC-71RD-30A is ideal for imaging faint nebulae, dark dust lanes, and expansive celestial structures.

Aperture 71 mm / focal length 230 mm / focal ratio f/3.2

Captures large areas

Short exposure time even with low-light subjects

Modified Petzval design with two ED and two lanthanum glass elements - a seven-element lens!

Very well-corrected image field with a diameter of 43.2 mm - also suitable for full-frame cameras

Focusing via internal focusing (William Internal Focus Design - WIFD) as found in telephoto lenses, compatible with EAF

Correct working distance automatically achieved when the image is in focus

Tilting function for individual adjustment of the camera sensor to the telescope

360° camera rotation for the correct image framing

Camera mount via M54 or M48 external thread - working distance approximately 55 mm

Flexible dovetail bar at the base, compatible with Vixen saddle plates and Arca-Swiss quick-release systems

Bahtinov mask for astrophotography included

Tube length only 315 mm / weight with tube ring and dovetail 4.1 kg - suitable for travel

This exclusive anniversary model is strictly limited to only 100 sets worldwide. Once they are gone, they are gone.

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Technical data..
In the box..
Manufacturer infos..
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William Optics Mighty Cat 71 - 30th Anniversary Limited Edition

The William Optics Mighty Cat 71 - 30 Years Anniversary Limited Edition is a groundbreaking 71 mm apochromatic astrograph engineered to redefine ultra-fast deep-sky imaging. Celebrating three decades of optical innovation, this exclusive 100-set limited run features a custom "Cosmic Visitor" design adorned with intricate extraterrestrial motifs - a tribute to 30 years of peering into the unknown and chasing the mysteries of the universe. It introduces an unprecedented, record-breaking f/3.2 focal ratio - the fastest telescope William Optics has ever created - while featuring a 43.2 mm image circle and the patented WIFD internal focusing system.

The ultra-fast f/3.2 optical system drastically reduces required exposure times, helping capture faint nebulae, dark dust lanes, and expansive celestial structures in a fraction of the time. With its flat-field 7-element optics, stable internal focusing, and a playful design that hints at technology from another world, the Mighty Cat 71 Anniversary Edition is built for demanding deep-sky imaging with modern full-frame and cropped-sensor camera systems.

Ultra-fast f/3.2 optics
Captures deep-sky objects with unparalleled efficiency, utilizing the fastest optical system in William Optics history to maximize photon collection and shorten exposure times.

7-element EVO Petzval design
Provides a naturally flat image field without requiring an additional field flattener, delivering sharp stars and clean detail across a wide imaging area.

43.2 mm full-frame image circle
Supports full-frame, APS-C, and Micro 4/3 camera systems, giving astrophotographers total freedom for wide-field composition and high-resolution deep-sky imaging.

WIFD (William Optics Internal Focuser Design)
The patented internal focusing system keeps the focusing mechanism centered inside the telescope, improving balance and helping avoid rear drawtube-related flexure or vignetting.

Sensor Tilt Xterminator (STX-R)
Features a heavy-duty rear tilt and rotation interface designed to support modern imaging setups, reducing the chance of rear-end sag while retaining convenient sensor-squaring capability.

Anti-shrink lens cell technology
Helps maintain stable optical alignment under changing temperatures by minimizing the effects of material expansion and contraction around the lens cell.

Built-in patented Bahtinov mask
Integrated into the front cap for quick and accurate focusing, making precise star focus easier in the field.

Patented handle bar design
Improves handling, portability, and accessory mounting while maintaining the clean mechanical layout of the Mighty Cat platform.

Personalized laser engraving
Available for direct purchases, allowing each telescope to carry a customized personal mark.

Lens type:	7-element EVO Petzval lens
Lens elements:	Super ED glass x3, other glasses x4 (including lanthanum glass)
Focal length:	230 mm
Aperture:	71 mm
Focal ratio:	f/3.2
Image circle:	43.2 mm
Focuser:	WIFD R&P focuser with 1/10 speed reduction, compatible with EAF
Focuser travel:	0-35 mm
Adapters included:	"Sensor Tilt Xterminator" (STX-R) tilt flange, rotator, M54 threaded adapter, M48 threaded adapter
Optional flattener:	No flattener required
T-mount support:	Canon EF, RF, Nikon F, Sony E, Pentax K, Fuji X, Micro Four Thirds
Camera formats:	Full-frame, APS-C, Micro Four Thirds
Dovetail bar type:	Vixen, Arca-Swiss
Dovetail bar length:	210 mm
Tube length:	315 mm
OTA weight:	3.38 kg / 7.45 lbs
Total weight:	4.1 kg / 9.04 lbs

- Tub
- Bahtinov mask
- Covers
- M48 and M54 adapters
- Tube ring with handle bar
- Dovetail bar, dual-side
- Tool set
- Soft carrying case
- Matchingly designed packaging
- Commemorative certificate

Manufacturer / Importeur:	Teleskop-Service Ransburg GmnH
Street:	Von-Myra-Str. 8
ZIP / City:	85599 Parsdorf
Country:	Germany
Telefon number:	+49 89 99228750
Email:	info@teleskop-service.de
Website:	www.teleskop-express.de