# Why do distant galaxies (quasars) look white in photos?

My question is inspired by this question about red shift.

When viewing photos of distant galaxies, especially quasars, they are often shown as white. However, the light would have been red-shifted. Are the photos,

a) post-processed to cancel out the red-shift and show the galaxy as it would appear "close by"?

b) showing us the galaxy's ultra-violet emissions, i.e. the photo is in false color?

c) accurate because, for most stars, uv emissions are mostly similar to visible light emissions?

d) accurate because the red shift is not significant enough to affect the visible light appearance?

• These days, most astronomy "photos" are in false colour. Unless the photo is actually taken in visible light, it has to be so. Also, in many cases, they are a combination of several images take with different sensors (visible, IR, UV, etc). – hdhondt Dec 21 '15 at 0:01

So $z<3$ quasars may have flux at all visible wavelengths, but higher redshift objects should become increasingly red as the Lyman break is redshifted further into the visible range.