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Swedish Solar Telescope
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===CHROMIS=== The ''CHROMospheric Imaging Spectrometer''<ref>{{cite web|title=CHROMIS|url=https://dubshen.astro.su.se/wiki/index.php/CHROMIS|work=SST wiki|publisher=Institute for Solar Physics|accessdate=26 September 2017}}</ref> (CHROMIS) was installed in 2016. It is similar to [[#CRISP|CRISP]] (but so far without polarimetry) and designed for use at wavelengths in the range 380β500 nm. In particular, CHROMIS is optimized for use in the Ca II H and K lines, which are formed in the upper chromosphere. The total system uses three 1920Γ1200-pixel Grasshopper 3 CMOS cameras from Point Grey (now FLIR). One camera is used for direct narrow-band observations and two, in a phase-diversity configuration, are collecting simultaneous wide-band image data.
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