| 摘要 |
PURPOSE:To make a camera compact, by providing a telephoto focusing guide and a change-over member between the focusing guide and a focusing member cooperatively with the rotation for changing over the telephoto position of a change-over ring. CONSTITUTION:If a change-over ring 3 is in a wide angle position W, a change- over member 18 is put in a retreat position by a cam 17, and a wide angle focusing guide 11 contacts directly with a lens driving lever 12, then the guide 11 is pressed in accordance with the rocking angle of the lever 12 by a lens presetting mechanism 14, whereby the automatic focusing over a wide angle is accomplished with a lens holder 8. When the ring 3 is changed over to a telephoto position T, the holder 8 and the guide 11 and projected together with a lens barrel 4. The change-over member is then oscillated by the cam 17 to bring a telephoto focusing guide 21 so as to face the space between the guide 11 and the lever 12. A rear conversion lens 22 is also moved to face the rear of a master lens 7, whereby the telephoto lens is constituted. |
