The Y4KCam (Yale 1m 4K CCD Camera) was a project to equip the Yale 1m telescope at CTIO as a dedicated wide-field CCD imager and filter wheel for operation in queue, service, and traditional visitor observing modes as part of the Small and Medium Aperture Research Telescope System (SMARTS) project that ran at CTIO from 2003 until 2020.  The Y4KCam on the Yale 1m, along with the ANDICAM on the CTIO 1.3m and the spectrographs on the CTIO 1.5m, were the main observatory facility triad of SMARTS.  The Y4KCam saw regular use for SMARTS science from 2004 until it was retired in 2019.

Y4KCam project was also used by the ISL to evaluate the then new STA0500 4Kx4K CCDs which were later deployed with OSMOS, and to get hands-on experience with Astronomical Research Cameras (ARC) Leach Gen3 CCD controllers.  The Y4KCam CCD was mounted in a standard IR Labs dewar and integrated with its Leach controller by Mike Lesser's Imaging Technology Lab at the University of Arizona Steward Observatory.

After its retirement in 2019, the Y4KCam system and its filter wheel were repatriated to OSU where the filter wheel and detector system are being updated for eventual redeployment at the MDM 1.3m telescope.