Claims
- 1. An interchangeable optical system interchangeably mounted to a camera body which is capable of detecting subject-image-shake on a focal plane caused by camera-shake, said optical system comprising:
- an optical element, constituting said optical system, which is movable in a direction other than optical axis of said optical system to correct the subject-image-shake; and
- means for producing a coefficient specific to said optical system and used for converting an amount of the subject-image-shake into an amount of movement of said optical element.
- 2. An interchangeable optical system according to claim 1, wherein the coefficient is constant.
- 3. An interchangeable optical system according to claim 1, wherein the coefficient is variable.
- 4. An interchangeable optical system according to claim 3, wherein said optical system is a zoom lens and the coefficient is changed based on a focal length of said zoom lens.
- 5. An interchangeable optical system according to claim 3, wherein the coefficient is changed based on a position of a focus adjusting lens of said optical system.
- 6. An interchangeable optical system according to claim 1, further comprising means for producing a focal length data of said optical system used for detecting the amount of the subject-image-shake in accordance with the camera-shake.
- 7. An interchangeable optical system according to claim 1, further comprising means for calculating the amount of movement of said optical element based on the amount of the subject-image-shake and the produced coefficient.
- 8. An interchangeable optical system according to claim 1, wherein said optical element is movable on a plane perpendicular to optical axis of said optical system.
- 9. An interchangeable optical system according to claim 1, further comprising means for driving said optical element so as to move in a direction other than optical axis of said optical system.
- 10. An interchangeable optical system according to claim 9, wherein said driving means has a driving mechanism, having a driving shaft provided with a groove to drive the shaft in a straightforward direction, for transmitting a driving power to said optical element.
- 11. An interchangeable optical system according to claim 9, wherein said driving means has a limit switch which detects that an amount of movement of said optical element reaches a predetermined limit amount.
- 12. A camera comprising:
- detecting means for detecting an amount of subject-image-shake on a focal plane caused by camera-shake;
- an optical system which has an optical element movable in a direction other than optical axis of said optical system to correct the subject-image-shake;
- driving means for driving said optical element;
- producing means for producing a coefficient used for converting the amount of the subject-image-shake into an amount of movement of said optical element; and
- calculating means for calculating the amount of movement of said optical element based on the coefficient produced by said producing means and the amount of the subject-image-shake detected by said detecting means.
- 13. A camera according to claim 12, wherein said optical system is detachably mounted on a camera body.
- 14. A camera according to claim 12, wherein said optical element is movable on a plane perpendicular to optical axis of said optical system.
- 15. A camera according to claim 12, wherein the coefficient is a constant.
- 16. A camera according to claim 12, wherein the coefficient is variable.
- 17. A camera according to claim 16, wherein said optical system is a zoom lens and the coefficient is changed based on a focal length of said zoom lens.
- 18. A camera according to claim 16, wherein the coefficient is changed based on a position of a focus adjusting lens of said optical system.
- 19. A camera comprising:
- detecting means for detecting a subject-image-shake on a focal plane caused by camera-shake;
- correcting means for correcting the subject-image-shake on a focal plane;
- producing means for producing a data representing a magnification;
- comparing means for comparing the magnification with a predetermined value; and
- inhibiting means for inhibiting the correcting operation of said correcting means when the magnification exceeds the predetermined value.
- 20. A camera according to claim 19, wherein an optical system of the camera has an optical element movable in a direction other than optical axis of said optical system, and said correcting means corrects the subject-image-shake by driving the optical element.
- 21. A camera according to claim 20, wherein said optical system is detachably mounted on a camera body and has driving means for driving said optical element.
Priority Claims (1)
Number |
Date |
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Kind |
1-238690 |
Sep 1989 |
JPX |
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Parent Case Info
This application is a divisional of application Ser. No. 08/062,950, filed May 18, 1993, now U.S. Pat. No. 5,416,554, which is a continuation of application Ser. No. 07/581,887, filed Sep. 13, 1990, now U.S. Pat. No. 5,266,981.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
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62-47012 |
Jan 1987 |
JPX |
Divisions (1)
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Number |
Date |
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Parent |
62950 |
May 1993 |
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Continuations (1)
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Number |
Date |
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Parent |
581887 |
Sep 1990 |
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