The Sony α7R III (model ILCE-7RM3)
is a
full-frame mirrorless interchangeable-lens camera
A mirrorless camera is a photo camera featuring a single, removable lens and a digital display.
The camera does not have a reflex mirror or optical viewfinder like a digital single-lens reflex (DSLR) camera, but may have an electronic ...
manufactured by
Sony
, commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professiona ...
. It was announced on 25 October 2017 as the successor to the
Sony α7R II
The Sony α7R II (model ILCE-7RM2) is a full-frame mirrorless interchangeable-lens camera in the Sony α7 series of cameras. It was announced by Sony on 10 June 2015. At the time of its release, it had the largest backside illuminated CMOS sensor ...
launched two years prior. The camera shares many features with the α7R II, including the same 42.2 MP resolution for still photography. It was superseded by the
Sony α7R IV
The Sony α7R IV (model ILCE-7RM4) is a full-frame mirrorless interchangeable-lens camera manufactured by Sony. It was announced on 16 July 2019 as the successor to the Sony α7R III launched two years prior.
Image gallery
File:Sony Alpha 7R ...
in July 2019.
Camera does not include optical low-pass (anti-aliasing) filter
Improvements over α7R II
Several improvements were made compared to the
α7R II, including the following:
* Improved dynamic range due to lower noise in sensor readout
* 425 contrast-detect
autofocus
An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system ...
points, up from 25 in the α7R II
* Altered button layout reminiscent of the
α9
* Improved autofocus performance
* Improved battery life due to larger battery
* Dual
SD card
Secure Digital, officially abbreviated as SD, is a proprietary non-volatile flash memory card format developed by the SD Association (SDA) for use in portable devices.
The standard was introduced in August 1999 by joint efforts between SanDis ...
slots, compared to a single slot in the α7R II. However, the slots do not exactly match. One is an SD slot (UHS-I/II compliant), the other is a dual SD (UHS-I compliant) and Sony
Memory Stick
The Memory Stick is a removable flash memory card format, originally launched by Sony in late 1998. In addition to the original Memory Stick, this family includes the Memory Stick PRO, a revision that allows greater maximum storage capacity an ...
Duo slot.
* Improved shutter mechanism to reduce shutter-induced shake
* Pixel shift multi-shot mode that combines exposures taken on each subpixel of the
Bayer filter
A Bayer filter mosaic is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. Its particular arrangement of color filters is used in most single-chip digital image sensors used in digital cameras, cam ...
, improving overall image quality
See also
*
Comparison of Sony α7 cameras
*
Sony α9
The Sony α9 (the α is sometimes spelled out as Alpha), Model ILCE-9, is a full-frame mirrorless interchangeable-lens camera. It was Sony's flagship camera as of 2017. The camera is not the successor to the α7 line of digital cameras but supple ...
*
Exmor R
Exmor is the name of a technology Sony implemented on some of their CMOS image sensors. It performs on-chip analog/digital signal conversion and two-step noise reduction in parallel on each column of the CMOS sensor.
Exmor RS is the world ...
References
https://www.sony.com/electronics/interchangeable-lens-cameras/ilce-7rm3a/specifications
External links
Sony α7R IIIDPReview
Sony α7R III compared with Nikon D850DPReview
{{Sony MILC cameras
α7R III
Cameras introduced in 2017
Full-frame mirrorless interchangeable lens cameras