Left: NIKA2 150 GHz data reduction transfer function as a function of the angular frequency. The uncertainties are computed using the dispersion of the transfer functions computed from different simulations. The 150 GHz beam cutoff and the size of the NIKA2 FOV are also represented by green dashed lines. Right: angular power spectrum of the NIKA2 residual correlated noise (blue), CMB primary anisotropies (green), CIB (red), and unresolved CIB (orange) at 150 GHz. The NIKA2 beam and transfer function filtering has been applied to the contaminant power spectra. The blue regions show the angular scales that are larger and smaller than the NIKA2 FOV and beam, respectively.