Camera system, blur correction method therefor, camera body and interchangeable lens

Abstract

A camera system including an interchangeable lens and a camera body, in which the camera body includes: a Roll blur correction range setting unit that sets a blur correction range in Roll directions of the camera body to be theta 1 when the interchangeable lens mounted on the camera body cannot perform blur correction (in the Pitch directions and the Yaw directions) or that sets the range to be theta 2 (greater than or equal to theta 1) when the interchangeable lens can perform blur correction; a Pitch-Yaw blur correction range setting unit that sets blur correction ranges in the Pitch and Yaw directions of the camera on the basis of the set blur correction range in the Roll direction; and a blur correction ratio calculation unit that calculates a blur correction ratio of each of the interchangeable lens and the camera body when both of them perform blur correction.

Description

technical field [0001] The present invention relates to a camera system including an interchangeable lens and a camera body equipped with an image shake correction function for correcting image quality deterioration caused by hand shake, and a camera shake correction method for the camera system. Background technique [0002] In recent years, cameras equipped with a hand-shake correction function have become widespread, and it is possible to take good images free from image shake even without paying special attention to hand-held shooting. [0003] In addition, there is an interchangeable-lens camera in which a photographic lens can be replaced according to photographic purposes. In such a camera system, the aforementioned camera shake correction function may be mounted on an interchangeable lens or a camera body. [0004] When an interchangeable lens is equipped with a hand shake correction function, the interchangeable lens is equipped with a sensor that detects shake, an...

AI Technical Summary

Problems solved by technology

[0013] A first aspect of the present invention is a camera system including an interchangeable lens and a camera body configured to allow detachable attachment of the interchangeable lens, wherein the camera body has a shake correction unit that implements corrections for a plurality of rotation directions. Shake correction, the plurality of rotation directions include: a roll direction, which is a rotation direction whose rotation axis is the optical axis of the interchangeable lens mounted on the camera body; a pitch direction, which is a rotation direction perpendicular to the optical axis The axis is the rotation direction of the rotation axis; the yaw direction is the rotation direction with the axis perpendicular to both the optical axis and the axis perpendicular to the optical axis as the rotation axis; the determination unit determines the whether the interchangeable lens on the camera body can implement shake correction for the pitch direction and the yaw direction; the roll shake correction range setting unit, which is determined by the determination unit as being installed on the camera body In a case where the interchangeable lens cannot perform shake correction in the pitch direction and shake correction in the yaw direction, the shake correction unit performs shake correction in the roll direction. The shake correction range is set as the first shake correction range, or the determination unit determines that the interchangeable lens mounted on the camera body can perform shake correction in the pitch direction and the yaw direction. In the case of the shake correction, the shake correction range in the roll direction when the shake correction unit performs shake correction in the roll direction is set to a second shake correction range equal to or larger than the first shake correction range a pitch and yaw shake correction range setting section, which sets the shake correction range by the shake according to the first shake correction range or the second shake correction range set by the roll shake correction range setting section; a correction section that performs shake correction for the pitch direction and shake correction for the yaw direction a range of shake correction in the pitch direction and the yaw direction; and a shake correction ratio calculation section that, in the determination When the Ministry determines that the interchangeable lens mounted on the camera body can perform shake correction for the pitch direction and shake correction for the yaw direction, calculate the camera body and the interchangeable lens A camera shake correction ratio on the camera body side and an interchangeable lens side shake correction ratio when the shake correction for the pitch direction and the shake correction for the yaw direction are divided, In a case where the interchangeable lens on the body can perform shake correction for the pitch direction and shake correction for the yaw direction, the shake correction unit can perform the shake correction within the range set by the roll shake correction range setting unit. The shake correction for the roll direction is performed within the second shake correction range, and the pitch and yaw are adjusted according to the camera body side shake correction ratio calculated by the shake correction ratio calculation unit. The shake correction range setting unit performs the shake correction for the pitch direction and the shake correction for the yaw direction within the shake correction ranges for the pitch direction and the yaw direction set based on the second shake correction range. camera shake correction in a direction in which the interchangeable lens performs shake correction in the pitch direction and shake correction in the yaw direction according to the interchangeable lens-side shake correction ratio calculated by the shake correction ratio calculation unit.

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