| 摘要 |
PURPOSE:To execute automatically focusing in both a standard photographing optical system and a telephone photographing optical system, by transferring the driving force from a driving source, to a driving means of a main optical lens system positioned in a lens barrel through a flexible shaftlike transfer body in response to a switching means of a lens system. CONSTITUTION:In a camera which is capable of switching a lens system to a standard system and a telephone system which extends temporarily a rear converter lens, the focusing operation can be executed automatically at a position of each system, and a main optical lens system 1 and a rear converter lens 21 system are capable of extending-in and extending-out freely independently. When the main optical lens system 1 is driven to a focal position detecting means by interlocking with operation of a release button successively, the driving force is transferred to the operating means of the main optical lens system 1 through a flexible shaftlike transfer body 103 in response to switching of the standard system and the telephone system. |
