| 摘要 |
An imaging apparatus includes an imaging sensor, a reticle, a focus detection unit, a spectroscopic member, and a diffusion coefficient controller. The imaging sensor is configured to receive light from a lens unit. The reticle is capable of changing a diffusion coefficient. The focus detection unit is configured to detect a focus state of an imaging surface based on a signal from the imaging sensor. The spectroscopic member is configured to split the light from the lens unit to the reticle and the focus detection unit. The diffusion coefficient controller is configured to change the diffusion coefficient of the reticle. The diffusion coefficient controller controls a diffusion coefficient of a portion of the reticle corresponding to a defocus range to be higher than a diffusion coefficient of a portion of the reticle corresponding to a focusing range according to the focus state detected by the focus detection unit.
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