The image-pickup apparatus includes a focus detector generating focus
detection information using light from an image-pickup optical system, a
photometer generating photometry information using the light from the
image-pickup optical system, a focus controller performing focus control,
and an exposure controller performing exposure control. The photometer
includes first and second photoelectric conversion part having different
spectral sensitivity characteristics and formed to at least partially
overlap each other in a light entrance direction from the image-pickup
optical system. The photometer generates the photometry information based
on the output from the first photoelectric conversion part. The focus
controller performs the focus control using the focus detection
information and focus correction information obtained based on the
outputs from the first and second photoelectric conversion parts. The
exposure controller performs the exposure control using the photometry
information and exposure correction information obtained based on the
outputs from the first and second photoelectric conversion part.