A Focal Reducer is mounted to the 1.3m telescope. The Focal Reducer can be used in two different configurations:
1. In the imaging mode the focal length of the telescope is reduced by a factor of 1.87, enlarging by the same factor the imaged area of the sky on the CCD. A Filter Wheel with 6 filter positions is integrated to the Focal Reducer.
View the list with available filters here excluding those of 100 mm diameter.
2. In the spectroscopy mode a reflection grating is introduced in the collimator path. Using different gratings, resolutions ranging from 0.57Å/pixel to 4Å/pixel are achievable with a 13.5μm 2048x2048 pixel Ikon-L CCD camera.
GRATINGS FOR THE FOCAL REDUCER
|Lines/mm||Blaze Wavelength (nm)||Wavelength in1.order for max. Intensity||Dispersion (Å/mm)||Mounted|