The difference will be that it should allow you to focus closer then normal. I own a macro lens with a switch like that, normally it focuses to 4.5 ft minimum. But if i'm zoomed up to 100mm, i can flick the switch to allow me to focus up to 3 ft away.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/erik_3934b541f17c4e99
67 views
Usually answered in minutes!
×