Things to know before buying a mirrorless camera

If you’re thinking about purchasing a mirrorless camera but unsure where to start, fret not! This article provides key insights and considerations to help you make an informed decision. From understanding the benefits of mirrorless cameras to evaluating specifications and features, you’ll gain valuable knowledge before taking the plunge.

Additionally, we’ll address frequently asked questions, guiding you through the process effortlessly. So, let’s explore the world of mirrorless cameras together, shall we?

Understanding mirrorless cameras

Definition of mirrorless cameras

Mirrorless cameras are a type of digital camera that does not have a mirror mechanism found in traditional DSLR (Digital Single-Lens Reflex) cameras. Instead of using a mirror to reflect light from the lens to an optical viewfinder, mirrorless cameras use a digital sensor to display the image in real-time either on an electronic viewfinder or a LCD screen. This design allows for a more compact and lightweight camera body compared to DSLRs.

Comparison with DSLR cameras

When comparing mirrorless cameras to DSLRs, there are several key differences to consider. One of the main differences is the absence of a mirror in mirrorless cameras, which contributes to their smaller size and lighter weight. Additionally, mirrorless cameras typically have faster and more accurate autofocus systems, thanks to advanced autofocus technologies. Another advantage of mirrorless cameras is their ability to shoot silently due to the lack of a mirror slap, which can be beneficial in quiet environments like weddings or wildlife photography.

On the other hand, DSLRs generally have larger batteries, providing longer battery life compared to mirrorless cameras. DSLRs can also offer a wider range of lens options, including more specialized lenses for various photography genres. Additionally, DSLRs have an optical viewfinder that provides a more direct and natural way of composing an image. Overall, the choice between mirrorless and DSLR depends on individual preferences and specific photography needs.

Advantages and disadvantages

Mirrorless cameras come with their own set of advantages and disadvantages. One major advantage is their compact size and lightweight construction, making them easier to carry and more portable. Mirrorless cameras also excel in video recording capabilities, often offering higher resolutions and better autofocus options for videography. Furthermore, the electronic viewfinder found in mirrorless cameras allows for real-time preview of exposure and other settings, providing a more accurate representation of the final image.

However, mirrorless cameras generally have shorter battery life compared to DSLRs, requiring careful planning and spare batteries for longer shoots. Despite the growing number of lens options for mirrorless cameras, DSLRs still offer a wider selection, especially in terms of third-party lenses or highly specialized lenses. Additionally, some photographers may find the electronic viewfinder and LCD screen of mirrorless cameras less intuitive compared to the optical viewfinder of DSLRs. Ultimately, the choice between mirrorless and DSLR depends on the individual’s preferences, shooting style, and budget.

Technical specifications

Sensor size

The sensor size is an essential factor to consider when choosing a mirrorless camera. Larger sensors generally provide better image quality with improved low-light performance, dynamic range, and depth of field control. Popular sensor sizes include Micro Four Thirds, APS-C, and full-frame. Micro Four Thirds sensors are smaller but offer excellent portability, while full-frame sensors deliver exceptional image quality and low-light performance at a higher cost.

Megapixel count

Megapixel count refers to the number of pixels on the camera’s sensor and determines the resolution of the resulting images. Higher megapixel counts can be advantageous for photographers who need to make large prints or require extensive cropping capabilities. However, it is important to note that megapixels alone do not guarantee superior image quality, as factors such as sensor size, lens quality, and image processing also play a significant role.

ISO range

ISO range indicates the camera’s sensitivity to light. A wider ISO range allows for better low-light performance, making it possible to capture well-exposed images even in challenging lighting conditions. High ISO capabilities also come in handy when shooting fast-moving subjects, as it enables faster shutter speeds to freeze the action. It is worth noting that while higher ISOs may provide more flexibility, they can also introduce noise and affect image quality.

Autofocus capabilities

One of the advantages of mirrorless cameras is their advanced autofocus capabilities. Mirrorless cameras employ various autofocus technologies, such as phase detection autofocus (PDAF), contrast detection autofocus (CDAF), or a combination of both. PDAF focuses faster and is generally better suited for tracking moving subjects, while CDAF provides more precise focusing. Some mirrorless cameras also offer eye autofocus, which automatically focuses on the subject’s eyes, ensuring sharp and well-composed portraits.

Burst shooting

Burst shooting, also known as continuous shooting, refers to the camera’s ability to capture a series of images in rapid succession. This feature is particularly useful when photographing action or fast-moving subjects. Mirrorless cameras often excel in burst shooting thanks to their electronic shutters, which can capture images at high speeds with minimal shutter lag. The camera’s buffer capacity determines the number of images that can be captured in a single burst before the camera’s performance slows down.

Image stabilization

Image stabilization is a crucial feature that helps reduce camera shake and produces sharper images, especially in low-light conditions or when using longer focal lengths. There are two types of image stabilization: in-body image stabilization (IBIS) and lens-based image stabilization (IS). In-body image stabilization shifts the camera’s sensor to compensate for movements, while lens-based stabilization relies on stabilizing elements within the lens itself. Some mirrorless cameras offer both options, providing enhanced stabilization regardless of the lens being used.

Lens compatibility

Native lens options

Native lens options refer to lenses specifically designed for a particular camera system. When choosing a mirrorless camera, it is important to consider the availability and variety of native lenses. Different camera manufacturers offer their own lens lineups, including wide-angle, standard, telephoto, and specialty lenses. Native lenses are often optimized for the specific camera system and can provide additional features or improved image quality.

Third-party lens options

In addition to native lenses, mirrorless cameras enjoy compatibility with third-party lens manufacturers. Companies such as Sigma, Tamron, and Rokinon offer a wide range of lenses that can be used with various camera systems through different lens mounts. Third-party lenses can provide alternative focal lengths, specialized optics, or more affordable options compared to native lenses. Before purchasing a third-party lens, it is important to ensure that it is compatible with the specific mirrorless camera system.

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Adapter compatibility

One advantage of mirrorless camera systems is their flexibility with lens adapters. Adapters allow photographers to use lenses from different camera systems, including DSLR lenses, on a mirrorless camera body. This expands the range of available lenses and offers an opportunity to utilize existing lens collections. However, it is important to note that adapter compatibility may vary depending on the camera manufacturer and lens mount. In some cases, autofocus performance or other functionalities may be affected when using adapters.

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Electronic viewfinder vs. LCD screen

Differences between electronic viewfinder and LCD screen

Mirrorless cameras offer two primary ways of previewing and composing images: through an electronic viewfinder (EVF) or a LCD screen. An electronic viewfinder is a small display that mimics the optical viewfinder found in DSLR cameras, providing a real-time view of the scene as captured by the camera’s sensor. On the other hand, the LCD screen is a larger display located on the back of the camera that can be tilted or swiveled for various shooting angles.

The electronic viewfinder offers several advantages over the LCD screen. It allows for a more accurate preview of exposure, white balance, and other camera settings before taking the shot. Additionally, the electronic viewfinder provides a display that is easier to view in bright sunlight compared to the LCD screen. It also eliminates distractions by blocking external light, allowing photographers to focus solely on the image composition.

However, the LCD screen has its own benefits. It provides a larger and more detailed preview of the image, making it easier to assess sharpness, focus, and composition. The LCD screen is also useful for shooting at low angles or from awkward positions, thanks to its tilting or swiveling capabilities. Additionally, the LCD screen often offers touch functionality, allowing for intuitive control and navigation of the camera’s settings and menus.

Pros and cons of each option

The choice between using an electronic viewfinder or an LCD screen largely depends on personal preference and shooting conditions. The electronic viewfinder is preferred by many photographers who value the accuracy and immediacy of the real-time preview. It can be especially beneficial for those transitioning from DSLRs, as it offers a similar shooting experience. Furthermore, the electronic viewfinder allows for better focus accuracy, thanks to features such as focus peaking or magnification.

On the other hand, the LCD screen is advantageous in situations where a detailed preview is necessary or when shooting from unconventional angles. Its larger size and touch functionality make it easier to review and navigate through images and settings. Additionally, the LCD screen allows for a more natural way of shooting, as it is similar to using the screen of a smartphone or a compact camera. Ultimately, it is recommended to test both options and determine which one suits your shooting style and preferences.

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Battery life and charging

The Battery performance

Battery life is an important consideration when choosing a mirrorless camera. Due to their compact size and electronic components, mirrorless cameras generally have shorter battery life compared to DSLRs. The actual battery performance varies depending on factors such as camera settings, shooting conditions, and the use of power-hungry features like continuous autofocus or image stabilization.

To ensure optimal battery performance, it is recommended to carry spare batteries and keep them fully charged when shooting for extended periods. Some mirrorless cameras offer battery grips, which can accommodate multiple batteries, effectively extending the camera’s battery life. Additionally, using power-saving features such as auto power-off or disabling unnecessary wireless connections can help conserve battery life throughout a shoot.

Availability of spare batteries

Before purchasing a mirrorless camera, it is essential to consider the availability and cost of spare batteries. Some camera manufacturers offer their own branded batteries, while third-party manufacturers produce compatible batteries at a lower price point. It is important to ensure that spare batteries are easily obtainable, especially when shooting in remote or unfamiliar locations where access to charging facilities may be limited.


It is recommended to invest in genuine or reputable third-party batteries to ensure compatibility and reliable performance. Cheaper, off-brand batteries may not provide the same level of performance or longevity as the original manufacturer’s batteries and could potentially damage the camera.

Type of charger

Mirrorless cameras generally come with a dedicated battery charger to recharge the camera’s batteries. Depending on the camera model, the charger may be designed for specific battery types or universally compatible with multiple battery types. Some mirrorless cameras also offer in-camera charging through a USB connection, which can be convenient for on-the-go charging using external power banks or laptop computers.

When considering the type of charger, it is important to assess your charging needs. If you frequently travel or shoot in remote locations, a portable USB charger could be a valuable accessory. If, however, you primarily shoot in a studio or have access to power outlets, a dedicated battery charger may offer faster and more reliable charging times.

Camera size and weight

Advantages of compactness

One of the significant advantages of mirrorless cameras is their smaller size and lighter weight compared to DSLRs. The absence of a mirror mechanism allows manufacturers to design more compact camera bodies without compromising image quality or functionality. The compactness of mirrorless cameras makes them highly portable and easy to carry, enabling photographers to have their camera with them at all times.

The smaller size and lighter weight also make mirrorless cameras more discreet and inconspicuous, which can be beneficial for street, travel, or documentary photography. Additionally, the compactness of mirrorless cameras reduces the strain on the neck, shoulders, and back when carrying the camera for extended periods or when using larger lenses.

Impact on ergonomics

While the compact size of mirrorless cameras offers advantages in terms of portability, it can impact the ergonomics for some photographers. People with larger hands may find it more challenging to grip and handle smaller camera bodies comfortably. However, many mirrorless camera models now feature ergonomic grips and customizable button layouts to address this issue and improve handling.

It is recommended to test different mirrorless cameras in person to determine how comfortable they feel in your hand. Consider factors such as button placement, grip texture, and overall feel when making a decision. Additionally, third-party manufacturers offer handgrips and other accessories that can enhance the ergonomics of mirrorless cameras, providing a more secure and comfortable shooting experience.

Portability considerations

The compact size and lightweight nature of mirrorless cameras offer tremendous portability benefits. They can easily fit in a small camera bag or even a jacket pocket, allowing for spontaneous photography without the need for extensive gear. Mirrorless cameras are ideal for travel photography, outdoor adventures, or situations where carrying heavy and bulky equipment is impractical.

The portability of mirrorless cameras also extends to their lens systems. With smaller camera bodies, the lenses can be more compact and lightweight as well, further enhancing the overall portability. Consider the size and weight of the camera body and the lenses you plan to use when assessing the portability of a mirrorless camera system.

User interface and controls

Button layout and customization

The button layout and customization options of a mirrorless camera play a significant role in facilitating efficient and intuitive operation. Different camera manufacturers adopt varying approaches to button placement, but most mirrorless cameras provide dedicated buttons for essential functions such as ISO, white balance, exposure compensation, and autofocus.

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High-end mirrorless cameras often offer customizable buttons that can be programmed to suit individual shooting preferences. Customization options enable photographers to assign specific functions to the buttons they frequently use, allowing for quick and easy access without navigating through menus. When purchasing a mirrorless camera, it is advisable to consider the position, number, and customization capability of the buttons to ensure a seamless shooting experience.

Menu system

The menu system of a mirrorless camera serves as the central hub for accessing and adjusting various settings and functions. The simplicity and intuitiveness of the menu system directly impact the overall user experience. Ideally, a well-designed menu system should offer clear categorization, logical organization, and intuitive navigation.

When evaluating a mirrorless camera’s menu system, look for features such as customizable menus or favorites menus, which allow personalization and quick access to frequently used settings. Furthermore, some mirrorless cameras offer touch functionality within the menu system, making it easier to browse through options and make selections. A user-friendly menu system is especially valuable for beginners or photographers transitioning from a different camera system.

Touchscreen functionality

Many mirrorless cameras feature touch-sensitive LCD screens, providing an additional method of interacting with the camera’s settings and controls. Touchscreen functionality enables quick adjustments of settings, intuitive navigation through menus, and touch-to-focus capability. Additionally, some cameras allow touch gestures such as pinch-to-zoom for image playback or swipe gestures for browsing through images.

Touchscreen functionality can significantly enhance the overall user experience, particularly for those accustomed to using smartphones or tablets. However, it is important to note that not all mirrorless cameras offer touchscreens, and the quality of the touchscreen responsiveness can vary between models. If touchscreen functionality is essential to you, it is recommended to test the responsiveness and ease of use before making a purchase.

Video recording capabilities

Maximum resolution and frame rates

Mirrorless cameras are known for their excellent video recording capabilities, often able to capture high-resolution footage with a wide range of frame rates. The maximum resolution and frame rates available depend on the specific camera model and its video recording capabilities. High-end mirrorless cameras can record 4K video, providing exceptional detail and clarity suitable for professional videography.

When considering a mirrorless camera for video recording, it is essential to look for the desired resolution and frame rates, keeping in mind the specific video requirements. For slow-motion footage or specialized effects, higher frame rates are preferred, while cinematic or general video content can benefit from higher resolutions.

Focus tracking during video

Focus tracking during video recording is crucial for maintaining sharp and properly focused footage. Mirrorless cameras, with their advanced autofocus systems, often excel in focus tracking capabilities. Some mirrorless cameras offer reliable continuous autofocus (AF-C) during video recording, utilizing advanced technologies such as face detection, eye detection, or subject tracking.

It is advisable to research and test the autofocus performance of a mirrorless camera specifically for video recording, as autofocus performance can vary between models and camera manufacturers. The ability to track a subject smoothly and accurately during video recording enhances the overall quality and professional look of the footage.

Bitrate and compression options

Bitrate and compression options determine the amount of data captured and the resulting file size and image quality in video recordings. Higher bitrates provide more data and result in higher-quality footage but also generate larger file sizes. Compression options determine how the captured data is processed and stored, affecting both image quality and editing flexibility.

Mirrorless cameras often offer flexibility in terms of bitrate and compression options, allowing for adjustments based on specific video requirements. It is advisable to review the available bitrate and compression options and consider factors such as storage space, editing capabilities, and delivery requirements when selecting a mirrorless camera for video recording.

Things to know before buying a mirrorless camera

Source: TheTechBrain AI

Connectivity options

Wireless capabilities

Wireless connectivity is becoming increasingly common in mirrorless cameras, enabling seamless transfer of images to other devices or remote control of the camera. Wi-Fi and Bluetooth are two primary wireless technologies found in mirrorless cameras. Wi-Fi allows for high-speed file transfer to computers, smartphones, or tablets, while Bluetooth provides continuous low-power connectivity for quick and easy sharing and remote control.

Wireless capabilities can enhance workflow efficiency by enabling instant sharing of images on social media or transferring files wirelessly to a computer for editing. Some mirrorless cameras also offer remote control functionality through dedicated smartphone apps, allowing photographers to trigger the camera shutter, adjust settings, or view live images remotely.

Bluetooth and NFC

These are wireless technologies often integrated into mirrorless cameras for quick and easy pairing with other devices. It provides a low-energy, continuous connection, enabling features such as wireless remote control or automatic geotagging of images using a paired smartphone’s GPS. NFC, on the other hand, allows for one-touch pairing between the camera and a compatible device simply by bringing them close together.

Bluetooth and NFC technologies simplify the process of connecting and sharing images or controlling the camera remotely, offering convenience and flexibility. When considering a mirrorless camera, check for the availability and compatibility of Bluetooth and NFC, especially if these features align with your workflow or shooting requirements.

Tethering options

Tethered shooting involves connecting the camera to a computer or other devices for remote control, image transfer, or live view monitoring. Tethering offers several advantages, such as precise control over camera settings, real-time image review on a larger screen, or instant transfer of images for immediate editing or printing.

Some mirrorless cameras support tethered shooting through a USB connection or wirelessly, providing flexibility in various shooting scenarios. This can be particularly useful in studio environments or situations where instant review and transfer of images are essential. If tethered shooting is an integral part of your workflow, ensure that the mirrorless camera you choose offers tethering compatibility and sufficient connectivity options.


What are the main advantages of mirrorless cameras over DSLRs?

Mirrorless cameras offer several advantages over DSLRs. These include compact size and lightweight construction, faster and more accurate autofocus performance, silent shooting, real-time exposure preview, and high-quality video recording capabilities. Additionally, mirrorless cameras often have advanced features such as eye autofocus or in-body image stabilization. However, it is important to note that the choice between mirrorless and DSLR ultimately depends on individual preferences and specific photography needs.

Do I need to buy a specific brand of lenses for a mirrorless camera?

Most mirrorless cameras come with a specific lens mount designed by the camera manufacturer. While it is recommended to use native lenses for optimal performance and compatibility, third-party lens manufacturers offer lenses with different lens mounts that are compatible with various camera systems. Additionally, lens adapters are available to use lenses from different camera brands on mirrorless cameras. Before purchasing a lens, it is important to ensure compatibility with the specific mirrorless camera system and consider factors such as autofocus capabilities and lens performance.

What is the average battery life of a mirrorless camera?

The average battery life of a mirrorless camera varies depending on several factors, including camera model, shooting conditions, and usage of power-hungry features. Mirrorless cameras generally have shorter battery life compared to DSLRs due to their smaller size and electronic components. It is advisable to carry spare batteries and consider factors such as shooting duration or availability of charging facilities when planning for extended shoots. The actual battery life can range from a few hundred shots to several thousand shots per charge, depending on the specific camera model and usage patterns.


Understanding mirrorless cameras is essential before making a purchase. Mirrorless cameras offer a compact and lightweight alternative to DSLRs, with advanced autofocus capabilities, excellent video recording options, and a wide range of technical specifications to consider. Lens compatibility, electronic viewfinder versus LCD screen, battery life, camera size and weight, user interface and controls, video recording capabilities, and connectivity options all play a significant role in the overall shooting experience. By thoroughly evaluating these factors and considering individual preferences and shooting needs, you can make an informed decision when choosing the right mirrorless camera.