Sony Alpha 7R III vs Sony Alpha a7 III

Flip-out screens are useful for doing tricky shots.

Device is protected with extra seals to prevent failures due to any kind of weather.

With 100% coverage you can compose the image correctly when you capture the photo. With less than full coverage you may have to crop your photos afterwards to get them looking perfect.

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An optical viewfinder (or OVF) allows the photographer to compose a shot while seeing exactly what the lens sees. There is no time lag and they require no power - as opposed to electronic viewfinders which can drain battery life. They are also better in low light situations.

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The focus motor moves the lens in order to autofocus. For system cameras, having a focus motor in the camera's body allows you to use a wide range of lenses, including lenses which do not have their own focus motor. For compact cameras, a focus motor is usually built-in.

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The more focus points the more flexibility in picking which part of the scene to focus on. They also give the image sensor a better probability in identifying the right area of the scene to focus on in more automatic modes.

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The larger the sensor the more light the sensor captures yielding in better image quality.

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With AF tracking, once you choose the subject and press the shutter release part way down, as the subject moves, the autofocus will follow it. No more out of focus shots.

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With a higher light sensitivity (ISO level), the sensor absorbs more light. This can be used to capture moving objects using a fast shutter speed, or to take images in low light without using a flash.

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A phase detection autofocus is much faster than a contrast detection autofocus, allowing for sharper images.

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.

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A phase detection autofocus system is faster than a contrast detection autofocus system. Even when recording scenes with a lot of fast movements, the videos are sharp and clear.

A timelapse shows a long passage of time sped up. A series of photographs taken from the same position over a long period is joined together to create a short video. It is great way to capture things like the setting sun, or clouds moving across the sky.

When recording movies they stay focussed and sharp.

AVCHD (Advanced Video Coding High Definition) is a file-based format for the digital recording and playback of high-definition video. It's a standard popular among professional cameras and camcorders.

24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.

A stereo microphone allows to record audio files or movies in stereo without an external microphone.

A microphone port allows connecting external high-end or specialized microphones.

More microphones result in better sound quality and enable the device to filter out background noise.

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With a standard mini jack socket, you can use the device with most headphones.

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

Zoom microphones record very high quality audio, and enable you to record sound from a distance. This can be useful for recording meetings, lectures and presentations.

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CIPA is an independent, standard measurement that determines how many shots a camera can take before the battery dies.

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The battery is removable and can be replaced by the user if broken.

The battery can be recharged and used over again.

An indicator shows you when the device has low battery.

The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.

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The device can connect to WiFi.

The device has a standard memory slot (such as an SD or micro SD card slot) so that you can either extend the internal storage with affordable memory modules or you can retrieve data, such as photographs, easily from a memory card.

802.11n is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors - a, b and g.

A remote control allows you to control the device remotely. The remote control can be included or optional.

It has two memory card slots, allowing you to store more photos without switching cards. This is particularly useful on long shoots when you need more space.

GPS enables global positioning, useful in map, geo-tagging or navigation apps.

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