camera device

Abstract

The present invention provides an imaging device that is reliable for the user and can easily realize long-term photography such as bulb photography with appropriate exposure. Long-time photography is started in response to the first manual operation (#101), and the subject image is repeatedly photographed at a set cycle during execution of the long-time photography (#133, #135). The image data is always added to the previous image data (#137), the current brightness level is predicted according to the brightness level of the image obtained by the addition operation (#143), and the predicted predicted brightness and the predetermined value The comparison judgment is made (#149), the long-time photography is ended in response to the result of the brightness level judgment (#149 "Yes"), and the long-time photography is stopped in response to the second manual operation subsequent to the first manual operation (# 161 "Yes").

Description

technical field [0001] The present invention relates to an imaging device, and more particularly to an imaging device capable of displaying an image of a subject according to the progress of exposure in long-term photography such as bulb photography. Background technique [0002] In Bulb photography of a photographic device such as a digital camera, the shutter is kept open while the user presses the shutter release button (hereinafter referred to as the release button), and the shutter is released after the user releases the press operation of the release button. (called release operation), the shutter is closed, enabling long exposures ranging from seconds to minutes. Bulb photography has various photographic subjects, such as moonlight photographs that expose landscapes under the moonlight, photographs of trails of headlights of vehicles driving at night, and astrophotographs of long-term photographs of trails of stars in the night sky. As these examples show, there is a...

AI Technical Summary

Problems solved by technology

[0003] However, Bulb photography must be adjusted by the user's own feeling and experience by pressing the release button to adjust the opening time (exposure time) of the shutter. The possibility of failure is high, and it is one of the more difficult photography methods.

For example, in a moonlight photo, if the exposure time is too long, the pixels will be saturated, resulting in so-called blown highlights (blooming) of the subject image, and conversely, if the exposure time is too short, the subject image will be dark overall. question

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