Portaball 18 inch f/4.5
We will be adding more information soon regarding the addition of the 18" f/4.5 Portaball to the Mag 1 product line.
Contact us for more information.
|Sphere size & composition||29 inch Diameter Seamless Fiberglass|
|Upper tube assembly construction||22 inch O.D. Laminate composite|
|Trusses||1.5 inch O.D. anodized aluminum|
||Circular composite with PFA bearing
|Optics manufacturer||Zambuto Optical Co.|
|Primary mirror thickness||1.625 inches, in removable cell
|Secondary size (minor axis)||3.1 inches|
|Secondary obstruction (diameter)||17%(minimal diffraction)
|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
||~ 90 pounds|