The WIYN telescope has a new imager, the MiniMosaic with two SITE 2K x 4K CCDs arranged side by side to provide a 4K x 4K viewing area. At the Nasmyth f/6.3 focus of WIYN, this imager covers an area that is 9.6´ on the side, with pixels that project to 0.14" on the sky, thus providing good spatial sampling in even the 0.4" seeing conditions that are increasingly common at the WIYN telescope. The combination of a relatively large field of view with the excellent images across the entire field produced by this camera (less than 10% change in point-spread function even in 0.4" seeing) in excellent, naturally delivered seeing make the images suitable for stellar photometry in large, faint, crowded fields, which is a targetted goal for the WIYN.
Commissioning activities for the MiniMosaic have been completed, and the instrument has become the default imaging instrument at WIYN. The User's Manual for MiniMosaic is available at http://www.noao.edu/kpno/docs.html .