DSLR Testing

Answer 1

The following is some information about the DSLR test:
- Germany had tested 35 single-lens reflex and mirrorless cameras. The 188 digital cameras tested were divided into six categories (37 compact cameras, 35 single-lens reflex cameras, 76 cameras with changeable lenses, 22 sports cameras, 10 drones with cameras, and 18 webcameras). Three single-lens reflex cameras were "excellent" and from the same brand. 24 single-lens reflex cameras were rated "good", seven "medium", and one "pass".
- Compared to mirrorless cameras, DSLR cameras had their own characteristics. From a structural point of view, the mirror structure of the single-lens reflex camera was one of its cores. Light was projected through the lens onto the mirror, and the mirror reflected the light to the pentaprism and finally to the viewfinder. This structure was relatively complicated. In terms of focusing performance, early single-lens reflex cameras led the way in focusing speed and accuracy with the help of phase detection autofocus systems. However, in recent years, autofocus technology for mirrorless cameras had developed rapidly. With full-pel dual-core focus, eye-tracking focus, and other functions, it had surpassed single-lens reflex cameras. Due to the limitation of optical mirrors, the focus system of single-lens reflex cameras could only cover a part of the frame. In terms of video performance, single-lens reflex cameras used to dominate the field of video capture, but mirrorless cameras could achieve real-time focus and continuous framing without the need for a mirror. With the popularity of 4K and 8K video recording functions, mirrorless cameras had obvious advantages in video capture. In terms of the portable aspect, the mirror system of the single-lens reflex camera increased the size and weight, while the body design of the mirrorless camera was more compact and light. As the performance of the mirrorless camera reached or even exceeded the level of the single-lens reflex camera, without sacrificing the quality of the image, the mirrorless camera was more suitable for long-term outdoor shooting. In terms of intelligence, the mirrorless camera was equipped with more advanced electronic systems and software functions, such as Wi-Fi, Bluetooth, touch screen, etc., which supported more intuitive touch operation and could display real-time changes in parameters such as exposure and white balance. The DSLR camera was scarce or had a poor experience in these functions.
- In terms of the characteristics of the single-lens reflex camera, it had an optical viewfinder, which could provide the most realistic image. It could work perfectly even in dim light. Some old-fashioned electronic viewfinders with low refresh rates would display flashing previews. The optical viewfinder had an advantage when shooting fast-moving objects. If the optical viewfinder was mainly used for shooting, it could take 1000 or more photos on a single charge with low energy consumption. When changing lenses, the mirrors would fold up to protect the sensors from dust or sand.
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