The camera working is almost perfect, says Roger Clark in his review of the 7D Mark II. He stated that the camera delivers outstanding AF performance and features almost 10x lower thermal dark current. The camera is suitable for all different types of photography and it even results highly defined results while astrophotography. Clark in his review stated the features of this camera as game changing.
Conclusion from the review:
“The data shown here for the Canon 7D Mark II indicate that the camera is operating at near perfect levels for the sensor with lower apparent read noise and impressively low pattern noise compared to all other current Canon cameras tested and better than that in the 7D Mark I. This means that for high signals, noise is dominated by photon statistics. Sensitivity is improved 14% over the 7D Mark 1, and the sensitivity per square micron is the highest that I have measured for any Canon camera to date.
The approximately 10x lower thermal dark current is a game changing factor, making this camera the top Canon camera for long exposure low light photography that I have tested. The superb autofocus system, comparable to Canon 1D series pro cameras with 65 autofocus points is another game changing innovation, as the camera is at a price point that is affordable to more people.”