Camera 3, Filter F222M Notes: CO continuum. Thermal background important. See also “Camera 2, Filter F222M”. Central wavelength: 2.2174 μm Mean wavelength: 2.2180 μm Peak wavelength: 2.1866 μm Wavelength range: 2.15–2.28 μm FWHM: 0.1451 μm Maximum throughput: 25.088% Central pixel fraction: 0.380 Figure A.49: NIC3, F222M Throughput