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Status: 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. Overview: 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: IMACS Optical Specifications IMACS software development Magellan Guide Cameras IMACS Staff and Contributors Monthly Reports Instrument Manuals: Electronics Manual MCS Schematics MCS Photos Installation Links: FIRST LIGHT AND FIRST SPECTRA! Mainframe Installation 8/12/03 - 8/13/03 8/14/03 - 8/15/03 8/16/03 - 8/18/03 Pack and Ship Links: Packing and shipping Delivery and unloading Design and Fabrication Links: Final Assembly and Integration Telescope Preparation for IMACS Slit area: Slit Mask Fab. Devel. - Metal Spinning Slit Mask Fab. Devel. - Hydroforming Laser Mask Cutting Slit Mask Server IMACS Integral Field Unit (IFU) at U. Durham Guide Cameras Optics: Field Lens Collimator Optics Collimator Opto-Mechanics f/4 Camera Optics f/4 Camera Opto-Mechanics f/2 Camera Optics f/2 Camera Opto-Mechanics Mechanisms: Shutters Disperser Server Filter Servers Dewar Structures and Enclosures: Instrument structure Instrument carriage Instrument enclosures Electronics: Instrument electronics IMACS Project Documentation Project Documentation - PDF files Project Status Reports to the Magellan SAC - Powerpoint files Pre-Ship Review Documentation.