Leonard Migliore wrote:
river251 wrote:
Thanks Mironv. I plan to do that. I was just hoping for something that could explain all the numbers, rings, etc. on my 55 2.8, and how to make use of them for macro/micro shooting, for some immediate shots I want to take. Maybe I just need to find info on the markings on lenses in general.
Do you have any other AI lenses? If this is your first AI lens, you may not know that you have to register it in the camera's memory. That should be in your manual. Otherwise, the camera has no way to know that you have a 55mm f/2.8 on there. Once that's set, the camera will meter in aperture mode and report the f/stop in the viewfinder.
As far as the numbers and rings, like any other AI lens you have to set the f/stop on the lens. That takes care of that ring. The other ring is the focusing ring, and you just turn it until the picture's sharp. There are lots of numbers on there because the lens only goes to a magnification of 1:2. To get 1:1, you need to add an extension ring. So there's one set of orange magnification numbers for the lens itself and another set for the lens with the extension ring. I never look at these numbers.
One of the benefits of using an AI lens for macro is that you can change the f/stop in live view (you can't do this with any AF lenses). I generally focus at f/4 and then stop down to my taking aperture.