How to Choose a Mirrorless Camera: Guide and Tips

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How to Choose a Mirrorless Camera: Buying a high-end camera is an issue addressed by both amateurs and more seasoned photographers. Until recently, digital SLR cameras were the most popular option in this field.


In recent years, a new type of camera with rapid development has emerged on the market: mirrorless (system) cameras. Is it a viable alternative to DSLRs and advanced compact cameras, or is it the industry standard? What are their benefits and drawbacks? Which mirrorless camera is best? Let’s find a solution together.

What is it and what type of camera is it

The term “mirrorless” refers to the primary distinction between the in question cameras and their direct competitors, DSLRs. The difference is the absence of a mirror. The viewfinder of a mirrorless camera is not an optical prism. By removing these components, it was feasible to considerably reduce the body’s size and weight without affecting the matrix’s size, which determines the image quality. The viewfinder’s optical components have been replaced with smaller electronic components. When a mirrorless camera features a viewfinder, it is electronic.

Thus, the system camera is a device with more outstanding DSLR capabilities that are significantly smaller and lighter than its rival. Image quality, speed, autofocus precision, usability, and ergonomics are comparable.

Which is better, mirrorless or DSLR? What are the differences?

The primary distinction between mirrorless and SLR cameras is the design difference. Mirror-reflex cameras have a mirror, a lens, and a prism that convey the picture from the lens to the optical viewfinder. These factors transformed photography in the middle of the twentieth century. They made SLRs the most famous piece of professional equipment.

However, many now consider this technology relatively obsolete, and mirrorless cameras can be regarded as their replacement. The system camera is more compact and lightweight. Currently, available mirrorless cameras are quick, have a long battery life, have excellent viewfinders, and are compatible with a vast array of lenses.

Consequently, deciding between a DSLR and a mirrorless camera will depend on our choices about size and handling.

What types of mirrorless cameras are there? 

As with DSLRs, mirrorless cameras can be categorized by the size of their digital image sensor or sensor. This setting is essential for experienced users. Typically, a more significant sensor results in superior image quality and background blur. The lens’s field of view also depends on the matrix’s size. However, this should not always be the most crucial consideration when making a decision.

Full frame mirrorless cameras

The 36x24mm sensor is the same size as 35mm film, a prominent photographic medium before the advent of digital photography. Full-frame mirrorless cameras often target professionals and advanced users. New devices are costly.

In addition, they demand the use of lenses that are often larger and heavier than those for cameras with smaller sensors. The whole frame is used as a reference when converting the lens’s angle of view on a camera with a smaller sensor.

APS-C mirrorless cameras

24×16 mm or 22×15 mm matrix for Canon cameras. The reduced sensor size has a favorable effect on the camera’s pricing. Also, it enables the use of more compact lenses. APS-C sensor camera systems are the most prevalent. That is an excellent compromise between photo quality and cost.

These cameras are suited for semi-professional and hobbyist use—however, a smaller sensor results in a lens with a reduced field of view. In the case of the APS-C format, the focal length must be multiplied by 1.5, whereas for Canon cameras, the focal length must be multiplied by 1.6. A 20mm lens on an APS-C camera will provide an equivalent image to a 30mm lens on a full-frame camera.

Micro 4/3 mirrorless cameras

Typically, 17x13mm transducers are utilized in Olympus cameras. These devices are incredibly tiny and functional. Olympus Zuiko lenses are similarly compact. The Micro 4/3 system is an excellent option for those beginning their photographic journey.

However, there is a caveat: these devices are suitable for specific professional applications due to their superior optics. In this instance, the lens focal length multiplier is 2x.

What to look for when choosing:

  • Matrix

Its size, resolution, and tonal range. It is the most important component of any interchangeable lens digital camera. The size and quality of the matrix determine the price of the camera.

  • Viewfinder

Entry-level and video-focused models usually don’t have a viewfinder at all, just a screen. In other cases, mirrorless cameras are usually equipped with an electronic viewfinder. Some system cameras have an optical viewfinder, which, however, does not display an image that matches what is seen through the lens. The image in such an optical viewfinder is slightly shifted compared to what we see in photographs.

  • Autofocus

Modern system cameras have fast and efficient autofocus. Just a few years ago, this field was the Achilles’ heel of this type of equipment. However, the most modern models can compete with high-quality digital SLRs.

  • Video 4K


Video recording is the forte of mirrorless cameras. These cameras display a live image on the display or viewfinder while recording with continuous autofocus. The ability to record in 4k resolution is also particularly useful. This will allow you to keep all the details on the video. Some cameras also support higher video resolutions.

  • Image stabilization

Some newer mirrorless cameras have built-in image stabilization. These include cameras from brands such as Sony or Olympus. Stabilization reduces camera shake, resulting in clearer photos and videos in low light.

The operation of a mirrorless camera is essentially the same as the operation of a compact camera or even a camera module in a smartphone. A properly adjusted lens will project an inverted image onto the sensor. This in turn converts the amount of light hitting each pixel into a corresponding electrical charge. This signal is amplified and processed in turn.

Because the image sensor in mirrorless cameras is much larger than in compact devices or smartphones, the raw signal is stronger and less amplified. The result is much less noise. The image processor then processes the signals to further improve the image quality. Finally, the image is saved in a specific format (JPEG, for example) on the memory card.

Mirrorless: how to take pictures? Basic Tips

Taking photographs with a mirrorless camera is simple. Each of these devices includes an automatic mode that sets all parameters. These are practical options for novices who are unfamiliar with photography.

Almost every system device provides for manual or semi-automatic operation. We will use the camera by our settings because of them. Some devices include built-in tutorials that expedite familiarisation with the equipment.

Mirrorless for Beginners


A simple mirrorless camera is an excellent choice for beginning photographers. Its advantages will be its compact size, lightweight, and use. A camera with these qualities will not prevent novice users from carrying it at all times.

Professional models significantly more extensive, heavier, and more challenging to operate will require more time to master. A simple system camera features interchangeable lenses, allowing for future equipment development.

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