Camera 2, Filter F190N Notes: Paschen α continuum. See also “Camera 1, Filter F190N” and“Camera 3, Filter F190N”, Central wavelength: 1.9003 μm Mean wavelength: 1.9003 μm Peak wavelength: 1.9004 μm Wavelength range: 1.892–1.908 μm FWHM: 0. 0177μm Maximum throughput: 25.697% Central pixel fraction: 0.100 Figure A.25: NIC2, F190N Throughput