| 摘要 |
PROBLEM TO BE SOLVED: To set an optimum movement range for an interchangeable lens of such a kind that its movement range is limited so that picture quality performance can be maintained. SOLUTION: When a photographer aligns an operation knob 20 with a a lens-on-the-market display part 22 at the time of a lens change, the optimum variable adjustment range of automatic focusing(AF) photography under back focus control can be set. When the response range of AF varies owing to variation in the movement range, on the other hand, an alarm display is associated if the AF response range is exceeded. |
