RC 250mm F/8 (mirrors from GSO Optics)

Availability: Available in stock Type: reflector

This unit replaces our legacy 250mm F/8 model, offering a more cost-effective configuration while maintaining the same mechanical integrity and build quality.
It features Ritchey-Chretien optical sets manufactured by GSO and preserves the structural precision and durability expected from our previous generation.

The last batch of 4 (four) units shall be available for delivery starting April 2025.
One unit is still available for purchase, as of August 2025.
Images presented are of the unit build and sold in October 2024.

Key features:
* Ritchey - Chretien optics made by GSO, in Taiwan.
* Precision adjustment of primary & secondary mirror.
* Portable, medium size reflector telescope.
* Truss type chassis design for stability and quick cool down times.
* Carbon fibre and aluminium alloy, high quality chassis/frame.

Specifications & technical data:
Clear aperture – 250 mm; Focal ratio – F/8; Focal length – 2000 mm; Central Obstruction – 50%, linear

Dimensions:
F/8 version – 810 x 345 x 380 mm (L x W x H)
Weight = ~14 kg*
Usable back-focus = ~235 mm*, from back-plate
Usable back-focus = ~100 mm*, from corrector's last mechanical surface.
*Variations may occur.

Price: 6 500,00 Euro, net.
All units will be shipped out from Australia.
For local inquiries, please add 10% GST.

Included items:
– 3.2" Starlight Instruments focuser, rack and pinion, 38mm travel (model FTF-3215)
– Optical Corrector, 44mm corrected circle diameter
– shroud pack (secondary casing shroud, secondary cage shroud, truss shroud)
– side plates (pair)
– riser + finder shoe (Starlight FSB-CH)
– primary mirror cooling fans
– primary mirror heater
– primary mirror hard cover
– secondary mirror heater
– 350 mm D-type dovetail
– handle.

Optional accessories to consider when ordering:
Additional dovetail, Losmandy Type, 350 mm length, lightweight, to replace the handle.
Controller for heaters and fans (several variants available for integration).
Electronic focusing package for FTF3215 using Starlight's HSM30 motors. Controllers can be supplied by us or user supplied.
Reducer package (0.8x reduction factor for F/6.4 final f-ratio): 590 Euro, net (includes M86 to M68 adapter ring for FTF3215 focuser).
Motorized Flat Panel Cover - please inquire.

*Images shown are for illustrative purposes only. Actual product appearance and included accessories—such as dovetail plates or handles—may differ.
* Prices subject to change without notice.
* Net prices are exclusive of any applicable duties and taxes.
These are the responsibility of the Buyer and may be charged by your local customs authority upon delivery.

Back to products list