Ritchey-Chrétien 250mm F/8


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.


700 (L) x 330 (l) x 330 (h) mm (might differ slightly, depending on extra items chosen);
Weight – 12.5 kg;
Back-focus from end of back plate ~ 220 mm;
Connection thread on the back plate adapter: M117x1 – male.

Prices and configurations will be announced soon!


Contact Us

We're not around right now. But you can send us an email and we'll get back to you, asap.

Not readable? Change text.

Start typing and press Enter to search