The Imaging mode of NIRISS makes use of flight spare filters from the NIRCam. When used in parallel with NIRCam during programs involving deep imaging, NIRISS effectively becomes a third channel of NIRCam.
See the NIRISS imaging sensitivity.
The-wide band filters in the Pupil Wheel (highlighted in green) may be used only with the Filter Wheel in the CLEAR position (highlighted in green), as shown in Figure 1. The wide-band filters in the Filter Wheel (highlighted in green) may be used only with the Pupil Wheel in the CLEARP position (highlighted in green), as shown in Figure 2.
