B&W Astrophotos

Some faint emission nebulae look best when processed in black and white, using only the red part of the image. This is for the reason that these nebulae emit mainly in the deep red, where human eyes are relatively insensitive. There is not much information in the blue and green parts of the negatives.

Clockwise from upper right:

Horsehead and Flame Nebulae [500 mm, f/4, Fuji Super G 800]

Rosette Nebula [500 mm, f/4, Fuji Super G 800]

California Nebula [500 mm, f/4, Fuji Super G 800]