1. Although focus was fixed, the camera supported both variable aperture settings and shutter speeds. 2. Viewfinder backlighting was provided which also illuminated the aperture setting . 3. The wide depth of focus suggests a tiny aperture setting . 4. Lenses without the " A " aperture setting will only meter properly using stop-down metering. 5. The Exakta 66 added a Schneider lenses to tell it what aperture setting was selected. 6. An older Nikkor lens on a Nikon D90 likely would not support autofocus or aperture setting . 7. Under the MANUAL mode, you may find your fastest shutter setting be controlled by the aperture setting . 8. Altogether, two variations ( with two different aperture settings ) were made in its short production life. 9. However, many PC lenses require a small aperture setting to prevent vignetting when significant shifts are employed. 10. Used as an indicator of camera settings, EV corresponds to actual combinations of shutter speed and aperture setting .