Most cameras have the autofocus function coupled with the shutter button You half press and then the AF kicks ins and locks. But many times you like to recompose You hold the button half pressed, recompose and make the picture. Damn, you want to make another one, again you have to focus on your subject and recompose again. Wouldn’t it be nice if al this focusing had to be done only one time?
Are you all the time switching between one shot AF and servo AF? Wouldn’t it be great to have a way making all this switching not necessary?
Sometimes you want to use manual focus. Maybe when the AF is hunting with close ups. You have to set the lens to manual. Because if you don’t the AF will override you when touching the shutter button. Very annoying and wouldn’t it be great to have a solution for his?
Well, the solution for all these situations is Back Focus Button. It basicly means that the AF function has been assign to a button on the back of your camera. This button will be operated with your thumb. Only when you press it the AF is activated.
How you can implement this on your particulate camera is bet found in the manual.
You might a few days to get used to this method but after that you’ll probably stick to it for the rest of your life.
