“X” is for the Minolta XG-A.
The XG-A is a 35mm SLR camera made in 1982.

This particular camera belonged to my grandfather.

When I got it, I ran a roll of film through it for fun. Here’s one of my favorite photos:
Reference: McKeown’s Price Guide to Antique and Classic Cameras, 12th edition, ISBN 0-931838-40-1
The other cameras featured in this A to Z Challenge are linked on this page.