I made another attempt at creating a color image from a monochrome camera (the Nikon D850 monochrome). The technique works, but it seems that the act of screwing/unscrewing filters and/or detaching/attaching the lens hood leads to alignment problems. There might be a better solution, one that avoids disturbing the camera in any way.
In this case, I also show all three black and white images from which the composite was made, using the B+W Dark Blue KB-15, B+W Green 061m B+W Dark Red 091.
The monochrome sensor and its freedom from debayering reveal the native performance of the lens without any intervening software behaviors. Assembling a color image this way has some creative potential for several reasons including that the color filters used can cover distinct areas of the spectral band, versus most color cameras, which overlap the R/G/B spectral absorption.