Instrument Telescope Mirror Type Wavelength AO FoV Spatial Pixel R Nod and Diameter Feed scale Shuffle GMOS Gemini-North 8 Fibre Optical N 5'' x 7'' or 5'' x 3.5'' 0.2'' 1080 -- 7100 N GMOS Gemini-South 8 Fibre Optical N 5'' x 7'' or 5'' x 3.5'' 0.2'' 1080 -- 7100 Y ARGUS VLT 8 Fibre Optical N 11.5''x 7.3'' or 6.6'' x 4.2'' 0.52'' or 0.3'' 19000 -- 39000 N VIMOS VLT 8 Fibre Optical N 54'' x 54'' or 13'' x 13'' 0.67'' or 0.3'' 200 -- 2500 N SPIRAL AAT 3.9 Fibre Optical N 22'' x 11'' 0.7'' 1500 -- 13,000 Y WIFES ANU-2.3m 2.3 Slicer Optical N 25'' x 31'' 0.5'' 3000 -- 7000 N IMACS-IFU Magellan 6.5 Slicer Optical N 6.92'' x 5.00'' or 4.15'' x 5.00'' 0.2'' 1800 -- 10,000 N SparsePak WIYN 3.5 Fibre Optical N 72'' x 71.3''(Spare coverage) 4.687'' 5000 -- 21,000 N DensePak WIYN 3.5 Fibre Optical N 30'' x 45'' 3'' 5000 -- 21,000 N INTEGRAL WHT 4.2 Fibre Optical N 7.8'' x 6.4'' to 33.6'' x 29.4'' 0.45'' or 2.70'' 200 -- 10,000 N OASIS WHT 4.2 Lenslet Optical Both 7.4'' x 10.3'' to 2.7'' x 3.7'' 0.26'' to 0.09'' 200 -- 4000 N SAURON WHT 4.2 Lenslet 4810-5350A N 41'' x 33'' or 11'' x 9'' 0.94'' or 0.27 3000 N PMAS Calo-Alto 3.5 Fibre Optical N 8''x8'' 0.5'' 1500 -- 8000 N UIST UKIRT 3.8 Slicer IR N 3.3 x 6.8 0.24x0.12'' 1000 -- 4000 N GNIRS Gemini-S 8 Slicer IR N 3.15'' x 4.8'' 0.15'' 1700 -- 5900 N NIFS Gemini-N 8 Slicer IR Y 3'' x 3'' 0.1'' 5000 N SINFONI VLT 8 Slicer IR Both 8'' x 8'', 3'' x 3'' or 0.8'' x 0.8'' 0.25'', 0.1'' or 0.025'' 1500 -- 4000 N CIRPASS Private, demountable NA Fibre IR Both 13'' x 4.7'' or 9.3'' x 3.5 0.36'' or 0.25'' 3000 N