| 摘要 |
The lens apparatus includes an aperture stop (SP) forming an aperture, a first lens (A or B) disposed on a first side further than the aperture stop, the first side being one of an object side and an image side, and a second lens (B or A) disposed on a second side further than the aperture stop, the second side being the other of the object side and the image side. In zooming or focusing, the aperture stop is moved independently of the first and second lenses. The first lens and the aperture stop are brought into a first state where an aperture stop side lens surface of the first lens is located away from the aperture stop on the first side and a second state where at least part of the aperture stop side lens surface (RA or RB) of the first lens protrudes through the aperture to the second side further than the aperture stop. |
