Classic Cassegrain 400mm

Characteristics:

Clear aperture – 400 mm;
Focal ratio – 20; Focal length – 8000 mm;
Central Obstruction – 21%;
Primary substrate – Supremax33 (special order); ULE glass (Quartz) (standard);
Secondary substrate – Quartz;
Manual adjustments/collimation for both mirrors;
Primary cooling fans;
Primary mirror cage – Carbon Fiber;
Truss tubes – Carbon Fiber.

Dimensions:

(approx.) – 1270 x 535 x 570 mm (includes focuser’s height);
Weight – 35 kg;
Back-focus from end of back plate – ~230 mm;
Focuser: 2” Feathertouch R&P or 2” Moonlite DC;
Focuser travel: 50 mm.

Price:

12 915 Euro, includes VAT 23%. Net export price – 10 500 Euro (non EU countries) – Supremax primary – special order

15 990 Euro, includes VAT 23%. Net export price – 13 000 Euro (non EU countries) – Quartz primary

  • prices of OTAs are subject to change without notice

Included accessories:

– shroud pack (secondary casing shroud, secondary cage shroud, truss shroud);
– side plates (pair);
– handle;
– primary mirror cooling fans;
– primary mirror hard cover;
– dew heater for primary mirror;
– dew heater for secondary mirror;
– 500 mm D-type dovetail;
– back-plate handles (set of 2).

Notes:

*Because of high thermal inertia, present in thick Supremax33 mirrors, we highly recommend for 400 mm and bigger reflectors, the use of Ultra Low Expansion glass (Quartz/Fused Silica) for primary mirror!

Number of units manufactured/ordered: 2
Number of F/15 units manufactured/ordered: 1
Number of F/20 units manufactured/ordered: 1

Units available for ordering: none, manufactured based on order.
Average lead time: please inquire.

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