Tips on Using Non Automatic Lenses

Photography

equipment 

Cannon T5i body

Use auto for ISO. Why it seemed to work.  Trying to switch from the ISO did not work but when I switched to auto it worked. I learned from a retired professional photographer current with the new technology on cameras, using  the older lenses with the camera the camera will still be able detect the proper ISO. 

I will also be working on taking pictures of small cities at night.  This will make me use my limited photography skills to the max.