Title:
IMAGING DEVICE, IMAGING DEVICE MAIN BODY, AND LENS BARREL
Document Type and Number:
WIPO Patent Application WO/2016/031867
Kind Code:
A1
Abstract:
Provided are an imaging device, an imaging device main body, and a lens barrel, which are equipped with an apodization (APD) filter, and which enable the prevention of frequent changes in an imaging aperture value in response to changes in the brightness of a photographic subject when a program diagram of a multi-stage aperture method is used. In the present invention, a first program diagram (50) is selected when an APD filter (17) is not used, and a second program diagram (52) is selected when the APD filter (17) is used. The imaging exposure, that is, a set of imaging aperture values (AV) and imaging shutter velocities (TV), is determined on the basis of an exposure value determined from a photometric value from a photometry unit (27). The first program diagram (50) uses a multi-stage aperture method, with the aperture value (AV) assuming discrete values with the interval therebetween having a first value. For the second program diagram (52), the aperture values in the first program diagram (50) are corrected on the basis of the optical characteristics of the APD filter (17), thereby obtaining corrected values, with a portion of these corrected values being thinned such that each interval is at least a second value.
Inventors:
UCHIDA AKIHIRO (JP)
Application Number:
PCT/JP2015/074043
Publication Date:
March 03, 2016
Filing Date:
August 26, 2015
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G03B7/097; G03B11/00; G03B17/14; H04N5/238
Foreign References:
| JP2005062733A | 2005-03-10 | |||
| JP2005266096A | 2005-09-29 | |||
| JPH10268382A | 1998-10-09 |
Attorney, Agent or Firm:
KYORITSU INSTITUTE (JP)
Patent business corporation Kobayashi international patent firm (JP)
Patent business corporation Kobayashi international patent firm (JP)
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