초록 ▼

An image pick-up apparatus comprises a distance measuring unit that measures a distance to a subject, and a stroboscope that emits light of an intensity determined based on the measured distance. There are further provided a distance calculating section that calculates a distance to the subject base

An image pick-up apparatus comprises a distance measuring unit that measures a distance to a subject, and a stroboscope that emits light of an intensity determined based on the measured distance. There are further provided a distance calculating section that calculates a distance to the subject based on the current feed quantity of a focus lens, when the distance measuring unit has failed in the measurement of the distance to the subject, and a light intensity determining section that determines the intensity of light to be emitted from the stroboscope based on the calculated distance.

대표청구항 ▼

What is claimed is: 1. An image pick-up apparatus comprising: a distance measuring unit that measures a distance to a subject and outputs distance measurement information when measurement of the distance is successful; at least one distance deciding unit that decides the distance to the subject bas

What is claimed is: 1. An image pick-up apparatus comprising: a distance measuring unit that measures a distance to a subject and outputs distance measurement information when measurement of the distance is successful; at least one distance deciding unit that decides the distance to the subject based on a specific method when the distance measuring unit has failed to measure the distance to the object; a light intensity determining unit that determines an intensity of light corresponding to the distance to the subject; and a stroboscope that emits a light of the intensity determined by the light intensity determining unit, wherein the distance deciding unit decides the distance to the object based on the present feed quantity of a focus lens. 2. The image pick-up apparatus according to claim 1, further comprising a storage unit which stores a distance for each photographing mode in advance, wherein the distance deciding unit decides the distance stored in the storage unit as the distance to the subject. 3. The image pick-up apparatus according to claim 1, further comprising a setting unit which sets a value, wherein the distance deciding unit decides the value set by the setting unit as the distance to the subject. 4. The image pick-up apparatus according to claim 1, wherein the distance deciding unit decides the distance to the subject based on a limit feed quantity. 5. The image pick-up apparatus according to claim 1, further comprising an operating unit with which a user sets a value, wherein the distance deciding unit decides the value set by the user as the distance to the subject. 6. The image pick-up apparatus according to claim 1, further comprising a selecting unit and a plurality the distance deciding units, wherein the selecting unit selects one of the distance deciding units and makes the selected distance deciding unit decide the distance to the subject. 7. The image pick-up apparatus according to claim 6, wherein the selecting unit makes selection of the distance deciding unit based on a degree of preference provided to each of the distance deciding units. 8. The image pick-up apparatus according to claim 1, further comprising an operating unit with which a user changes the light intensity determined by the light intensity determining unit. 9. The image pick-up apparatus according to claim 8, the operating unit is means for changing an exposure value. 10. The image pick-up apparatus according to claim 1, further comprising an operating unit with which a user changes the distance to the subject decided by the distance deciding unit. 11. The image pick-up apparatus according to claim 1, further comprising a display unit which displays the distance to the subject. 12. The image pick-up apparatus according to claim 11, wherein the display unit is a monitor. 13. The image pick-up apparatus according to claim 11, wherein the display unit is a liquid crystal display. 14. The image pick-up apparatus according to claim 11, wherein the display unit is at least one light emitting diode. 15. The image pick-up apparatus according to claim 1, further comprising a display unit which displays the method based on which the distance deciding unit decides the distance to the subject. 16. The image pick-up apparatus according to claim 15, wherein the display unit displays the method in flicker and changes the period of the flicker based on the method. 17. The image pick-up apparatus according to claim 16, wherein the display unit is a monitor. 18. The image pick-up apparatus according to claim 16, wherein the display unit is a liquid crystal display. 19. The image pick-up apparatus according to claim 16, wherein the display unit is at least one light emitting diode. 20. The image pick-up apparatus according to claim 1, further comprising a display unit which displays a message indicating that measurement of the distance to the subject has failed when the distance measurement information is not output by the distance measuring unit. 21. The image pick-up apparatus according to claim 20, wherein the display unit displays the distance to the subject decided by the distance deciding unit in color. 22. The image pick-up apparatus according to claim 20, wherein the display unit is a monitor. 23. The image pick-up apparatus according to claim 20, wherein the display unit is a liquid crystal display. 24. The image pick-up apparatus according to claim 20, wherein the display unit is at least one light emitting diode. 25. The image pick-up apparatus according to claim 1, wherein the distance deciding unit decides the distance to the subject based on one or more selected from a group consisting of a position or state of the image pick-up apparatus and a photographing mode set in the image pick-up apparatus. 26. An image pick-up apparatus comprising: a distance measuring unit that measures a distance to a subject and outputs distance measurement information when measurement of the distance is successful; a distance deciding unit that decides the distance to the subject based on a specific method when the distance measuring unit has failed to measure the distance to the subject; a light intensity determining unit that determines an intensity of light corresponding to the distance to the subject; and a stroboscope that emits a light of the intensity determined by the light intensity determining unit, the distance deciding unit having one or more selected from a group comprising from a first to forth distance deciding units, wherein the first distance deciding unit determines the distance to the subject based on the present feed quantity of a focus lens; the second distance deciding unit having a setting unit which sets a value, wherein the second distance deciding unit decides the value set by the setting unit as the distance to the subject; the third distance deciding unit determines the distance to the subject based on a limit feed quantity; and the fourth distance deciding unit having an operating unit with which a user sets a value, wherein the fourth distance deciding unit decides the value set by the user as the distance to the subject, further comprising a selecting unit which selects one of the first to fourth distance deciding units and makes the selected distance deciding unit decide the distance to the subject, wherein the selecting unit selects the first distance deciding unit, the second distance deciding unit when the first distance deciding unit is unable to decide the distance to the subject, the third distance deciding unit when the second distance deciding unit is unable to decide the distance to the subject, and the fourth distance deciding unit when the third distance deciding unit is unable to decide the distance to the subject.