![]() ![]() The UV channel will be upgraded to a single thinned 4k x 4k or two thinned 2k x 4k devices depending on availability and funding. Three devices will be replaced by (thick) monolithic 4k x 4k, 15\mu CCDs from Lockheed Martin Fairchild Systems. During the commissioning phase the instrument is equipped with four 2k x 2k LORAL CCDs. The dichroics - plane-parallel glass plates operating at an angle of 45 degrees - split the optical wavelength range such that standard intermediate-band filter systems (e.g. iv) Each exposure results in a complete dataset. iii) With the large field of view extended objects are covered in a single exposure. ii) Precious observing time is used very efficiently. BUSCA offers new perspectives for multicolor photometry: i) Color indices in the optical can be determined with high reliability even in non-photometric atmospheric conditions. ![]() ![]() The field of view at the 2.2 m telescope is 12'x12'. It is based on three dichroic beam splitters and four large area detectors (6圆 cm^2). The "Bonn University Simultaneous CAmera" (BUSCA) is a CCD camera system for the CA 2.2.m telescope which allows simultaneous direct imaging of the same area in four colors. ![]()
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