Camera

A camera comprising:

• a main lens component disposed in a photographic optical path;
• an auxiliary lens component movable into and out of the photographic optical path and cooperable with said main lens component to provide a short focal length;
• means for selecting one of the short focal length and a long focal length;
• and
• control means operable in response to said selecting means to place said main lens component in a first position and said auxiliary lens component rearwardly of said main lens component when the short focal length is selected, and when the long focal length is selected to place said main lens component in a second position forwardly of the first position and to retract said auxiliary lens component from the photographic optical path into a space, a portion of which is occupied by said main lens component when the main lens component is at the first position.

A camera comprising:

• a main lens component disposed in a photographic optical path;
• an auxiliary lens component moveable into and out of the photographic optical path and cooperable with said main lens component to provide a short focal length;
• means for selecting one of the short focal length and a long focal length;
• control means operable in response to said selecting means to place said main lens component in a first position and said auxiliary lens component rearwardly of said main lens component when the short focal length is selected, and to place said main lens component in a second position forwardly of the first position and retract said auxiliary lens component from the photographic optical path when the long focal length is selected;
• and
• a light interrupting member stationarily mounted relative to said main lens component for preventing a beam having passed through said main lens component from falling on said second auxiliary lens component when the long focal length is selected and said auxiliary lens component is retracted.

A camera comprising:

• a main lens component disposed in a photographic optical path for providing a first focal length;
• a first auxiliary lens component movable into and out of the photographic optical path and cooperable with said main lens component to provide a second focal length;
• a second auxiliary lens component movable into and out of the photographic optical path and cooperable with said main lens component to provide a third focal length;
• means for selecting one of the first, second and third focal lengths;
• and
• control means including a mechanism for moving said first auxiliary lens component into and out of the photographic optical path by causing said first auxiliary lens component to pivot about an axis extending parallel to an optical axis of said main lens component, and a mechanism for moving said second auxiliary lens component into and out of the photographic optical path by causing said second auxiliary lens component to pivot about an axis extending parallel to a straight line perpendicular to the optical axis of said main lens component, said control means being operable in response to said switching means to retract said first auxiliary lens component and said second auxiliary lens component from the photographic optical path when the first focal length is selected, to bring said first auxiliary lens component into the photographic optical path and retract said second auxiliary lens component from the photographic optical path when the second focal length is selected, and to bring said second auxiliary lens component into the photographic optical path and retract said first auxiliary lens component from the photographic optical path when the third focal length is selected.

A camera comprising:

• a main lens component disposed in a photographic optical path for providing a first focal length;
• a first auxiliary lens component movable into and out of the photographic optical path and cooperable with said main lens component to provide a second focal length;
• a second auxiliary lens component movable into and out of the photographic optical path and cooperable with said main lens component to provide a third focal length;
• means for selecting one of the first, second and third focal lengths;
• and
• control means including a mechanism for retracting said first auxiliary lens component and said second auxiliary lens component both into one of spaces divided by a plane including an optical axis of said main lens component, said control means being operable in response to said switching means to retract said first auxiliary lens component and said second auxiliary lens component from the photographic optical path when the first focal length is selected, to bring said first auxiliary lens component into the photographic optical path and retract said second auxiliary lens component from the photographic optical path when the second focal length is selected, and to bring said second auxiliary lens component into the photographic optical path and retract said first auxiliary lens component from the photographic optical path when the third focal length is selected.

A camera comprising:

• a main lens component disposed in a photographic optical path;
• an auxiliary lens component rotatably supported around an axis perpendicular to the optical axis of the main lens component and movable into and out of the photographic optical path and cooperable with said main lens component to provide a short focal length;
• means for selecting one of the short focal length and a long focal length;
• control means operable in response to said selecting means to place said main lens component in a first position and said auxiliary lens component rearwardly of said main lens component when the short focal length is selected, and to place said main lens component in a second position forwardly of the first position and retract said auxiliary lens component from the photographic optical path when the long focal length is selected;
• and
• light interrupting means provided fixedly on an element supporting said auxiliary lens component for preventing a beam having passed through said main lens component from falling on said second auxiliary lens component when the long focal length is selected and said auxiliary lens component is retracted.