Photographic mirrorless camera

A mirrorless camera is a kind of camera without a mirror, also known as a half-lens camera. The representative of mirrorless camera is Sony, from the earliest A7 and A7R4 to the present A7S3 and A7R4,6110,000 pixels.

The difference between SLR and non-reflex is mainly the difference between framing structure and focusing system.

SLR adopts optical viewfinder and light speed separation phase difference system with mirror lifting system, which has fast focusing speed and strong focusing ability, but there are a few possibilities of losing focus in the case of large aperture. Of course, high-end flagship models can solve some problems by fine-tuning AF.

No feedback is a hybrid focusing system, which integrates phase detection points and contrast detection points on the sensor to realize focusing. Different manufacturers use different systems.

However, the regional focus tracking ability is weaker than that of SLR. 202 1 654381October 26th, Sony introduced a BSI-CMOS sensor, with the size of A 1 50.0 MP Quan Huafu (35.9X24 mm), equipped with dual BIONZXR processors, and the highest shooting resolution is 8640X5760 pixels. The local ISO range is 100-30.

This also provides more processing space for the later stage. Such strong performance is also suitable for various occasions, such as sports meetings and portrait street shooting. Continuous shooting is very fast and the vibration of the fuselage is very small. The semi-lens only needs to solve the problem that the camera focuses on the object quickly in the process of high-speed continuous shooting, and the improvement of current technology has also solved this problem well.