William Optics Mini Cat 51 WIFD Refractor Telescope
| Article number: | T-C-MINI-RD |
| Availability: | In stock |
| Delivery time: | In Stock! |
The 178mm f/3.5 Petzval optic is a precision-engineered telescope designed for astrophotography enthusiasts. Its 6-element Petzval lens design incorporates two Super ED glass elements, ensuring exceptional image clarity, minimal chromatic aberration, and high color fidelity. With a fast focal ratio of f/3.5 and a wide image circle of 43.2mm, this telescope provides bright, sharp images across a broad field of view, making it ideal for capturing detailed celestial objects. The optic is compatible with full-frame, APS-C (recommended), and M4/3 camera formats, offering versatility for a wide range of imaging setups. Its integrated tilt adjuster rotator and M54 to M48 adapter enhance usability, ensuring optimal alignment and seamless connection with imaging accessories.
Built with functionality and durability in mind, the optical tube assembly (OTA) is compact and lightweight, measuring 210mm in length and weighing just 1.67kg (3.68 lbs), with a total system weight of 2.29kg (5.05 lbs). The WIFD R&P focuser provides smooth, precise focusing with 0–28mm travel and is compatible with electronic auto-focusers (EAF), ensuring sharp and stable images. The telescope does not require a field flattener, further simplifying its operation. Its flange distance range of 58–30mm accommodates various imaging setups, while the robust construction and thoughtful design make it a reliable choice for astrophotographers seeking excellent performance in a portable package.
- Lens Type: 6-Element Petzval
- Lens Elements: Super ED Glass x2
- Focal Length: 178 mm
- Diameter: 51 mm
- Focal Ratio: f/3.5
- Image Circle: 43.2 mm
- Focuser: WIFD R&P Focuser, compatible with EAF
- Flange Distance: 58–30 mm
- Focus Travel: 0–28 mm (Ruler to 40)
- Adapter Included: Tilt Adjuster Rotator, M54 → M48 Adapter
- Optional Flattener: No flattener required
- Camera Format: Full Frame (compatible), APS-C (recommended), M4/3
- Tube Length: 210 mm
- OTA Weight: 1.67 kg / 3.68 lbs
- Total Weight: 2.29 kg / 5.05 lbs
