CLIO (Unavailable) : a 3 – 5µm thermal infrared camera with a direct-vision prism. MKO L’ and M filters and an ice band (3.1µm) filter are available with a 15”x30” FOV with 0.030” pixels at f/20.

The Fundamental Capabilities:
Detector 512 x 1024, 18.5 micron pixels
Filters MKO M’, Barr M’, 3.1um, Barr L’, 3 – 5um
Prism R = 8 – 157 (non-linear)
Further Information:

Clio is a 3-5 micron imager and coronagraph built to exploit the unique sensitivity and resolution of the MMT deformable secondary AO system. A particular area of focus for the instrument is to provide sensitive detection of giant planets at 3.8 and 4.8 microns. In the spring of 2010, the original 320×256 Indigo Systems InSb detector was replaced by a 512×1024 HAWAII HgCdTe detector. This upgrade allowed for more sensitive low background observations, while modestly reducing the allowable field size at M band. Clio was used extensively as part of the MagAO system on Magellan Clay at LCO in Chile. This system is being decommissioned and will be shipped back to Arizona in the fall of 2023.