I’ve been playing around with some old lens and a Canon EOS camera the past few days. There are a ton of adapter on the market so you can mix and match cameras with different lens. The adapter I’m trying out is the Fotodiox FD-EOS adapter. In the photo you can see it mounted between the camera and an old Canon 70-210mm Zoom lens. The adapter forces the camera into manual mode for your aperture and focus. Which is fine, because these older lens didn’t have autofocus servos anyway. I do enjoy shooting full manual, and this lens is fun to shoot with.
The adapter seems to shorten the focal depth, making it very shallow. Which is fine as long as your subject is standing still. Molly wasn’t standing very still, most of the time, but I still managed to get some good shots.
I shot these in Aperture Priority (AV) mode.  Even though the camera doesn’t know what settings are on the lens aperture, it still auto meters and sets the shutter speed for you. I have Canon 50mm FD lens, that I haven’t been able to get to work yet. It looks focuses in the viewfinder, but the actual photo is out of focus. I may purchase a different brand of adapter and see if it does the same thing. But for the zoom lens, it seems to work well. And $40 is much cheaper an a new lens would cost!
UPDATE: The 50mm lens is behaving finally. I realized I had the adapter in install mode instead of aperture mode. With the adapter in aperture mode, I was able to get some good shots. The lens aperture setting was f/5.6, with a shutter speed of 1/250. I had to use the camera in manual mode, as opposed to AV mode, to get the shutter speed high enough to not have any blur (I was shooting freehand). With some more experience with this adapter, I think I can get some really nice photos.
Below are some the shots I took with this rig.