Portaball 12.5 inch f/5The 12.5-inch PortaBall, like the smaller 8-inch model, delivers outstanding visual performance while still being a highly transportable scope featuring quick setup and knock down. The same process has been applied in design and re-engineering, with the following features: - An anodized aluminum support base
- Innovative truss attachment system that allows for faster assembly and dis-assembly
- Improved reliability with our new battery box and wiring system
- Custom molded top and new truss attach points provide a cleaner look while reducing weight at the top end
- Our new secondary cell incorporates an intuitive collimation system that helps you maintain optimum collimation at all times
Whether first-time user or seasoned observer, you'll appreciate our attention to detail and ease of use: hallmarks of all PortaBall models.
Specifications| Sphere size & composition | 22 inch Diameter Seamless Fiberglass | | Upper tube assembly construction | 14.25 inch O.D. Laminate composite | | Trusses | 3/4 inch O.D. anodized aluminum | | Base New and Improved | CNC machined and anodized aluminum billet | | Optics manufacturer | Zambuto Optical Co. | | Aperture | 12.5 inches | | Focal Ratio | f/5 | | Primary mirror thickness | 1.625 inches (1:9) | | Secondary size (minor axis) | 2.14 inches | | Secondary obstruction (diameter) | 17% | | Size and type of focuser | 2 inch Starlight Instruments | | Finder | Quik Finder by Rigel Systems | | Eyepiece height at zenith | Custom fit to your eye height, 62 inches min. | Weight of heaviest component
| ~ 50 pounds | | Total telescope weight | ~ 65 pounds |
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