We purchased this ASA 12N300/1,140 Newton astrograph f/3.9 (with corrector f/3.61) used in January 2024.
It is equipped with the AAF3 auto focuser from ASA, a 3 inch Wynne corrector (backfocus: 58.05mm) with a reduction factor of 0.95 and the following camera adapters:
a) Camera adapter for e.g. ASI6200 or other cameras with M54 internal thread
b) Camera adapter for DSLR Nikon F bayonet (46.5 mm flange focal distance)
c) Camera adapter for DSLR Canon EF bayonet (44.5 mm flange focal distance)
If you want to use the 12" ASA with a different camera, please contact Wolfgang Promper at ASA and ask which adapter is necessary for your camera.
Technical data
- Aperture: 300mm Focal length: 1,140mm
- Secondary mirror: 120mm
- Corrected field: 50mm
Accessories
- Bahtinov mask
- Flatfield box from Geooptik with power supply
- Adjustment instructions for Laser adjustment of the 12" Newton in a plastic bag
- ASA laser collimator Stick with
- ASA software ACC for the OAZ motor
- ASA OAY rings for mounting 2" socket or various camera connections
- Prism for off-axis
- M42 connection for off-axis prism
- M42 socket with 11/4" socket for off-axis guiding camera
- M42 extension 15mm
The enclosed pipe clamp has a 3" rail mounted at the top and bottom so that the astrograph is compatible with all of our mounts. In addition, Baader rider clamps can be mounted on the 3" rail for guiding tubes or additional cameras.
