Characteristics:
Clear aperture – 250 mm
Focal length – 2000 mm
Primary substrate – Supremax33/Suprax; Quartz (special order); Zerodur (special order)
Secondary substrate – Quartz
Primary mirror cage – Carbon Fiber
Truss tubes – Carbon Fiber
Dimensions:
700 (L) x 330 (l) x 330 (h) mm (might differ slightly, depending on extra items chosen)
Weight – 12.5 kgs
Back-focus from end of back plate ~ 220 mm
Connection thread on the back plate adapter : M117x1 – male
Focuser is not included!
