|Detector||512 x 1024, 18.5 micron pixels||further info|
|Filters||MKO M’, Barr M’, 3.1um, Barr L’, 3 – 5um||further info|
|Prism||R = 8 – 157 (non-linear)||further info|
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 spring 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.