I’m a little confused after reading some articles regarding apertures setting. I know that it can be set through the camera in AV priority or Manual mode. I’ve just realized that the lens can also be adjusted to lower the setting which commonly known as “stopping down”. Now I’m confused, lets say you’re using a 28-135mm f/3.5-5.6 lens, and you want to shoot at f/16, what do you do? Adjust both the camera setting and the lens???
I’ve also included a pix, could someone please explain to me what are those (arrowed A & B) functions for? Thanks.