Optimized for low-light shooting, the EOS 7D Mark II’s sensor
captures images at up to ISO 16000 (expandable to
H1: 25600 and H2: 51200). This is because of an improved
higher sensitivity photodiode construction, CMOS circuitry,
and color filters with higher light transmittance. As a result, the
EOS 7D Mark II records both still and moving images at higher
ISO speeds with remarkably low noise, making excellent
low-light photography and moviemaking possible.