| 摘要 |
PURPOSE:To obtain ratio data which show the position relationship between all the zoom lens focal distance range which can be set and a set focal distance and to display on a display part the position which the set focal distance based on the obtained data occupies within all the focal distance range and the change of photographing range caused by the focal distance change. CONSTITUTION:The data of the shortest focal distance and the longest focal distance of a replacing lens, which is stored in a ROM in the replacing lens to be installed on a camera main body is read by resisters REG7 and REG8, converted into display data at decoders DE10 and DE11, and numerically displayed on display devices DP1 and DP2. The data which show the value of the set focal distance within the range from the shortest focal distance to the longest focal distance is stored in the ROM. The data of the set focal distance from a resister REG11 is converted into the display data at a decoder DE12 and numerically displayed on a display device DP3. The data of % from a resister REG13 is sent to a display device DP4 and one of the display parts e1-e5 is displayed. |
