William Optics - Redcat 61 f/4.9 APO Refractor Optical Tube Assembly with WIFD with Free 32mm Guidescope Limited Offer
The William Optics RedCat 61 is a 61mm f/4.9 APO refractor featuring an innovative internal focuser dubbed the WIFD.
An internal focuser allows for use of heavy weight imaging systems without fear of focus slip by moving the internal fixed optics, without risk of misaligning optical elements.
A graduated focus drawtube allows for precision focus adjustment.
Everything you love about the Redcat design, the red anodized finish and travel friendly compact optical design now with WIFD.
William Optics Redcat 61 f/4.9 APO Refractor Optical Tube Assembly with WIFD
The William Optics Redcat 61 builds on the perennially popular Redcat design, stunning all red anodized finish, compact optical design for travel ease with exceptionally high quality optics and now includes the innovative WIFD internal focus design.
At the heart of this groundbreaking design lies the patented William Optics center focuser, seamlessly integrated with the internal focuser mechanism to achieve an ingenious synergy. Through the precise manipulation of the telescope's fixed optics, the Internal Focus Design (WIFD) enables effortless and accurate adjustments to the focus, delivering unmatched clarity and sharpness in every captured moment. Moreover, the internal focuser acts as a fortress, providing exceptional protection to the delicate optics, shielding against misalignment and ensuring unwavering performance under any circumstances.
A standout advantage of the WIFD lies in its remarkable ability to distribute the weight of the imaging system evenly, resulting in heightened stability during captivating astrophotography sessions. This harmonious weight distribution alleviates strain on the telescope mount, minimizing the occurrence of disruptive vibrations and granting the freedom to extend exposure times without compromising the pristine quality of the captured images. With the user-friendly rack and pinion focuser, astronomers can effortlessly fine-tune focus adjustments, offering unparalleled command over capturing their desired celestial subjects. Complementing this precision is an easily readable graduated display, serving as an intuitive aid that streamlines the process of achieving meticulous focus.
The integration of the patented William Optics center focuser and the internal focuser mechanism represents a leap forward in optical innovation. By harmonizing their capabilities, the WIFD system delivers not only exceptional clarity and protection but also enhanced stability and control, enabling astronomers to delve into the depths of the cosmos with unmatched confidence and finesse.
Redcat 61 WIFD Features:
- Lens Type: Petzval Design
- Focal Length: 300mm
- Aperture: 61mm
- Focal Ratio: f/4.9
- Image Circle 46mm FF
- Flattener: Petzval Flat Field
- Focuser: WIFD Internal Focus Design, Compatible with EAF
- Lens Material: FPL-53
- Camera Format Compatibility: Full Frame, DSLR, Mirrorless, CMOS and CCD
- T-Mounts Supported: Canon EF, RF, NIkon F, Z, Sony E, Pentax K, Micro Four Thirds, FUJI X
- Tube Length: 365mm
- OTA Weight: 5.43 lbs.
- Total System Weight: 7.47 lbs.
|Free Shipping||Free Shipping Available|
|Optical Tube Material||Aluminum|
|Optical Coatings||Fully Multi-Coated|
|Optical Tube Length||365mm|
|Optical Tube Weight||5.43 lbs. OTA Only|
|In The Box||
- Redcat 61 WIFD OTA
- Dust Cover with Bahtinov Mask
- Dew Shield
- Saddle Handle Bar
- Camera Angle Rotator
- Tilt Adapter Built In
- 210mm Vixen Style Dovetail Plate
- Soft Carry Case