Camera 2, Filter F212N Notes: H2 line. Thermal background important. See also “Camera 3, Filter F212N”. Central wavelength: 2.1213 μm Mean wavelength: 2.1213 μm Peak wavelength: 2.1228 μm Wavelength range: 2.111–2.132 μm FWHM: 0.0208 μm Maximum throughput: 27.421% Central pixel fraction: 0.082 Figure A.29: NIC2, F212N Throughput