Nikon EL2 instruction manual Operation of Camera CON, Setting the Aperture, Film-Advance Lever

OPERATION OF CAMERA CON

Setting the Aperture

The ring fitted at the base of the lens adjusts the size of the aperture (or opening) in the iris diaphragm. To pre- set the lens aperture, turn the aperture ring until the de- sired f/number setting on the scale is aligned with the index mark provided on the lens. The iris diaphragm can also be set to intermediate apertures between the click- stop settings for more precise exposures.

ROLS — continued

Film-Advance Lever

The film-advance lever simultaneously advances the film, cocks the shutter and operates the frame counter. It also switches on the exposure meter in the finder and unlocks the shutter-release button. To advance the film, stroke the lever with the right thumb in a single stroke totaling only 135°. A built-in locking device prevents the shutter from being released unless it is fully cocked and the film advanced a full frame. At the completion of film advance, release the lever and it will return to the 30° standoff position ready for shut- ter release.

Note: Do not apply pressure to the film-advance lever while making an exposure.