mirrorlessjärjestelmiä

Mirrorless systems, also known as mirrorless interchangeable-lens cameras (MILCs), are a type of digital camera that does not use a reflex mirror or an optical viewfinder. Instead, they use a digital electronic viewfinder (EVF) or the rear LCD screen to display the image. This design allows for smaller and lighter camera bodies compared to traditional DSLR cameras.

The core difference lies in the absence of the mirror box found in DSLRs. In a DSLR, a mirror reflects light from the lens up to a pentaprism or pentamirror, which then directs it to the optical viewfinder. When the shutter button is pressed, the mirror flips up, allowing light to reach the image sensor. Mirrorless cameras, on the other hand, direct light directly from the lens to the image sensor. The sensor's output is then displayed on the EVF or the rear screen in real-time.

This simpler internal mechanism contributes to several advantages. Mirrorless cameras can be more compact and lighter, making them easier to carry. The elimination of the mirror also reduces mechanical noise and vibration, which can be beneficial for certain types of photography, such as wildlife or situations requiring stealth. Furthermore, the electronic viewfinder can display a preview of the exposure and white balance settings before the photo is taken, offering more control to the photographer. Many mirrorless cameras also offer advanced autofocus systems, often utilizing on-sensor phase-detection pixels. Interchangeable lenses are a key feature, allowing photographers to use a variety of optics to suit different shooting needs, just like with DSLRs.