Skip to content. | Skip to navigation

Personal tools
You are here: Home Telescopes Magellan Instruments IMACS Imacs Project home




August 19th, 2003
First Light! IMACS had first light with the f/2 camera on 8/18/03. Click the link below to view the image. The initial installation campaign ended on 8/16/03, and the first commissioning ran 8/17/03 through 8/20/03. The instrument is shown here fully installed on the Baade telescope west Nasmyth platform.


The Inamori Magellan Areal Camera and Spectrograph (IMACS) is a wide-field imager and multi-object spectrograph for the Baade (Magellan I) telescope. In the f/11 Gregorian configuration, with an integral ADC and field corrector mounted at the tertiary mirror (not yet installed), the transmitting, all-spherical collimator in IMACS produces a well corrected, unvignetted field of 24 arcmin in diameter (and a slightly vignetted field of 30 arc-min in diameter).

Two cameras are used to re-image the 150mm diameter collimator exit pupil, with plate scales of 0.111 and 0.200 arcsec/pixel. An all-spherical, f/4 camera can directly image a 15 x 15 arcmin FOV, or spectroscopically image a 15 arcmin long slit with a variety of standard 150 x 200 mm diffraction gratings. The optically athermalized f/2 camera, with two aspheres and four liquid (oil) lenses, can directly image a 27 x 27 arcmin FOV, or spectroscopically image a 27 arcmin long slit with one of three standard 150mm aperture grisms. Both cameras use the same 8192 x 8192 CCD array, which interchanges between the two cameras.


Project Links:


 Instrument Manuals:


Installation Links:


Pack and Ship Links:


Design and Fabrication Links:


Slit area:





 Structures and Enclosures:




 IMACS Project Documentation


Document Actions