The phrase "grainy photos" means pictures that have little dots or specks on them, making them look rough or not very clear.
Sentences with «grainy photos»
In other words, if what you have from 1970 are grainy photos from certain angles at certain intervals, couldn't more current data be processed into the same format and quality? (realclimate.org)
Combined, these specs resulted in grainy photos and shaky video. (laptopmag.com)
Combined, these specs resulted in grainy photos and shaky video. (laptopmag.com)