William Optics RedCat 91 WIFD Refractor Telescope
| Article number: | T-C-91 |
| Availability: | More on the Way to us |
| Delivery time: | More on the Way to Us |
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The Redcat 91 telescope is a high-performance astrophotography tool with a 5-element Advanced Petzval lens design that offers superior imaging capabilities. With a focal length of 448 mm, 91 mm diameter, and f/4.9 focal ratio, this telescope offers an impressive balance of speed and field of view, making it ideal for capturing detailed deep-sky images. Its 55 mm image circle supports full-frame sensors, enhancing versatility for astro-photographers using a range of camera formats. The telescope's durable build, with a tube length of 556 mm and a total weight of 6.3 kg (13.89 lbs), ensures both portability and stability, making it an excellent choice for astro-photographers seeking quality and ease of use in a compact package.
- Lens Type: 5-Element Advanced Petzval
- Lens Elements: Super ED Glass x2, ED Glass x1, Lanthanum Glass x1
- Focal Length: 448 mm
- Diameter: 91 mm
- Focal Ratio: f/4.9
- Image Circle: 55 mm
- Focuser: WIFD R&P Focuser (Compatible with EAF)
- Focus Travel: 0-36 mm (Ruler to 40 mm)
- Adapter Included: Tilt Adjuster, Rotator, M63 → M54 Adapter, M63 → M48 Adapter
- Optional Flattener: No flattener required
- T-Mount Supported: Canon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4/3); FUJI X
- Camera Format: Medium Format (requires additional adapter), Full Frame, APS-C, M4/3
- Tube Length: 556 mm
- OTA Weight: 4.72 kg / 10.41 lbs
- Total Weight: 6.3 kg / 13.89 lbs
