| 摘要 |
PURPOSE:To attain an aperture display at the time of aperture EE on the body side by fitting a transmission member for transmitting the minimum aperture value to the camera side only when the camera is set to an aperture EE position to a step number controlling lens. CONSTITUTION:An aperture EE display part 7 formed at a fixed length from the minimum aperture value inlet is made coincide with a dial type index 4. By said configuration, a transmission member 8 fitted to an aperture setting member 3 and a member 9 to be transmitted fitted to a camera body are engaged with each other, but the moving distances (a-c) of the member 9 to be transmitted are varied because the transmission member 8 is set on a different position (l1-l3) in accordance with the kinds of exchange lenses. Consequently the deviation of the minimum aperture value from a fixed standard aperture value is transmitted and an aperture value at the time of opening is operated from said deviation and displayed as an aperture value. At the time of shutter EE or manual photographing, the members 8, 9 are not engaged and the number of aperture stages are transmitted by a transmission member 5 and a member 6 to be transmitted. |
