ODK20
The ODK Series
ODK20
From: £23,760.00 excl. VAT
Because of many, many possible clients asking us for a larger model in the ODK range we are now in the process of offering a 500mm model with a carbon truss type tube.
We made two similar models to the one we have now in production and these were supplied to the ESO and ENO observatories.
Brief specification of the ODK20 is shown it the table top right, it is indeed a marvellous instrument and is based around a design which has supplied data to assist in the control of these two enormous main instruments iat the Canary Islands and Paranal observatories.
As a minimum we recommend a Paramount ME to compliment the ‘scope or mount with similar carrying capacity.
We expect to customise several aspects of every model to your own specifications. We do not wish to impose a fixed design if a few modifications could suit your needs better. Prices quoted are for standard specification as above.
SPECIFICATIONS
ODK20 | |
---|---|
Aperture | 500mm |
Focal Length | 3400mm |
Back focal distance from the back of the mirror cell +-1mm | 255mm |
Focal Ratio | f/6.8 |
Tube Weight | approx. 61kg |
Tube Length | 1180mm |
Tube Material | Carbon fibre sandwich with Struts |
Secondary Size | 199mm |
Mirror Cell | Honeycombe CNC machined alum. |
Focuser | Optional, ask for details |
Corrector Design | Multi coated 3 lens, 75mm dia. |
Flat Field Size | 60mm |
Spot Size on Axis | 2.4μm |
Spot Size at Field Edge | 6.0μm |
Central Obstruction | 39% |
Primary/Secondary Material | Schott Suprax |
Optical coatings/Shape | Hilux, AR Broadband, ellipsoid |
Mirror / Tube Cooling | 3 Controllable fans. Heaters optional |
Attachment Method | CNC machined alum. dovetail with supports |