Sony
lpha a7 III Mirrorless Digital Camera with 70-200mm f/2.8 GM OSS Lens
The Alpha a7 III Mirrorless Digital Camera from Sony is a well-rounded camera suitable for both photo and video applications in a variety of working situations. Refined for improved speed and low-light performance, the full-frame 24.2MP Exmor R BSI CMOS sensor and BIONZ X image processor pair to realise an impressive 10 fps continuous shooting rate and improved autofocus performance for faster, more reliable subject tracking along with wide frame coverage. This updated Fast Hybrid AF System employs a combination of 693 phase-detection points and 425 contrast-detection areas for quicker acquirement of focus in a variety of lighting conditions, and also maintains focus on subjects more effectively. In addition to speed and AF, the processing improvements also help to realise greater image clarity and reduced noise throughout the sensitivity range from ISO 100-51200, which can further be expanded to ISO 50-204800. Video recording capabilities have also been extended for enhanced quality when recording UHD 4K video with the full width of the full-frame sensor to minimise moiré and aliasing. Additionally, benefitting both stills and video operation, the a7 III utilises a 5-axis SteadyShot INSIDE sensor-shift image stabilisation, which is now effective to minimise the appearance of camera shake by up to 5 stops.
Beyond just updates to the imaging system, the a7 III's body design has also been revised to include a rear 3.0" 922k-dot touchscreen LCD, which has a tilting design to better support working from high and low angles. A 2.36m-dot Tru-Finder OLED EVF is also featured for bright and clear eye-level monitoring. For greater shooting flexibility, dual SD memory card slots are now featured, and a larger NP-FZ100 battery is also employed to achieve up to approximately 710 shots per charge. Suiting the camera's use in trying conditions, the magnesium-alloy chassis and weather-sealing also render the a7 III dust- and moisture-resistant.
Boasting exceptional optics, a complete feature set, and outstanding speed in all aspects, the Sony FAE 70-200mm f/2.8 GM OSS Lens easily takes its place as the de facto telephoto zoom for professionals. A member of the G Master series, this 70-200mm delivers high sharpness alongside smooth, clean bokeh and with an absolute minimum of aberrations. This is guaranteed through the use of an XA element, two aspherical elements, four extra-low dispersion elements, and two Super ED elements in the optical design. Furthermore, the lens has a Nano AR Coating that reduces reflections, flare, and ghosting for improved contrast and colour.
Optimised for speed, this lens is equipped with a fast and constant f/2.8 aperture that will be an asset in low-light conditions as well as for creating images with shallow depth of field. Bokeh is made even better by the implementation of an eleven-blade circular diaphragm for smooth out-of-focus areas. Also, there is a double-linear and ring Super Sonic wave Motor system that provides fast, responsive autofocus in both stills and video.
As a top end telephoto zoom, this lens is equipped with a variety of other technologies to assist shooters, including Optical SteadyShot image stabilisation for combating camera shake, especially at longer focal lengths. Users will enjoy faster and more intuitive operation with a plethora of physical controls on the lens barrel, including three focus hold buttons, a focus range limiter switch, and both AF/MF and OSS switches. For durability and working in tough conditions, the lens is dust and moisture resistant, and it has a fluorine coating on the front element to resist water and oil.
Camera Features:
- The apt focus system also lends itself to a variety of focusing functions for refined accuracy, including Lock-on AF, which maintains focus on moving subjects throughout the use of a configurable frame that is set over the desired moving subject, and Expand Flexible Spot, which employs neighbouring focus points to retain focus on moving subjects even if the originally selected point loses focus. Additionally, Eye AF can be used to base focus on recognised subjects' eyes for portraits and is available in both AF-S and AF-C modes. Autofocus can also be used in conjunction with the Focus Magnifier function for critical focus when homing in on minute subject details. The rear touchscreen can also be used for Touch Focus control, and a Touchpad Focus Control mode lets you use the rear screen intuitively while keeping your eye to the viewfinder.
- Packed into the robust a7 III is a 5-stop effective 5-axis SteadyShot INSIDE image stabilisation system that compensates for five different types of camera shake encountered during handheld shooting of stills and video. This allows users to confidently use any lens, even adapted lenses, for critical imaging without encountering blur from camera shake.
- For long focal lengths, the system will correct for pitch and yaw adjustments. Macro and high-magnification imagery, on the other hand, will benefit from the inclusion of horizontal and vertical shift compensation. All shooting styles will get usage out of the roll compensation. All 5 axes of stabilisation will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilisation.
- Internal recording of UHD 4K movies is possible in multiple frame rates up to 30 fps and using 2.4x oversampling renders greater detail and full pixel readout is possible, that is void of pixel binning, for higher quality imagery with reduced moiré and aliasing. Full-frame 4K recording has also been dramatically improved for improved quality when working at mid to high sensitivities to permit full use of the entire sensor width. Full HD 1080p recording is also supported in frame rates up to 120 fps, and both resolutions utilise the 100 Mb/s XAVC S format contained within an MP4 wrapper with 4:2:0 sampling. The high-speed, 120 fps recording also enables 4x and 5x slow-motion movie recording with the frame rate set to either 30p or 24p. In addition to high-resolution internal recording, uncompressed HDMI output also enables the use of an optional external recorder for clean 4K recording with 4:2:2 sampling.
- Affording extensive customisable colour and gamma controls, the a7 III allows users to adjust the gamma, black level, knee, colour level, and more. Also, users can use the same S-Log2 Gamma Curve that is found on high end Sony Cinema cameras that squeezes up to 1300% more dynamic range into the video signal then traditional REC709, for increased post-production flexibility. HLG (Hybrid Log-Gamma) support is also available, along with the BT.2020 colour space, for recording within a wide colour gamut and, in addition to S-Log2, S-Log3 is also available for producing an effective 14-stop dynamic range with increased grading control in the shadow to mid-tone regions of the image.
- An XGA OLED Tru-Finder EVF is featured, and has a 2.36m-dot resolution and 0.78x magnification for bright, clear viewing in high detail. This viewfinder design also affords the use of autofocus in the Focus Magnifier mode as well as improved focusing peaking to benefit manual focus operation.
- In addition to the EVF, a 3.0" 922k-dot rear LCD is also available, which has a touch panel design for intuitive operation and focusing control. The screen also tilts upward 107° and downward 41° to benefit working from high and low angles.
- Magnesium-alloy chassis assures rigidity, durability, and stability while remaining lightweight. The lens mount has also been improved to better support heavy lenses and the grip rigidity has been improved for more comfortable hand-holding.
- Weather-sealing has been employed to resist dust and moisture for reliable operation in harsh weather conditions.
- Using the NP-FZ100 battery, the a7 III has improved battery life and is now rated for approximately 710 shots per charge.
- Dual SD memory card slots allow for flexible file saving and handling, and can be configured to partition raw and JPEG files or can be used for overflow recording. One of the card slots is rated to support UHS-II memory cards.
- A USB 3.0 Type-C port has been added, in addition to a micro-USB port, for faster, more reliable tethering support. The USB Type-C connection allows the camera to be charged from the host power source while connected.
- Built-in Wi-Fi enables the a7 III to instantly share imagery to mobile devices for direct sharing online to social networking, via email, and to cloud storage sites. NFC (Near Field Communication) is also supported, which allows for one-touch connection between the camera and compatible mobile devices; no complex set-up is required. Once connected, the linked mobile device can also display a live view image on its screen and remotely control the camera's shutter.
- Bluetooth connectivity allows for location data acquisition.
- A Ratings function lets you assign star values, from 1-5, to images in-camera for faster editing and sorting at home during post-production.
- An advanced 1200-zone evaluative exposure metering sensor delivers consistent and accurate results using multi-segment, centre-weighted, or spot metering modes.
- Highlight and Average metering modes helps avoid blown-out highlights and provide stable auto-exposure, respectively.
- Anti-flicker shooting automatically recognises and times the shutter action to minimise the flicker effect for more consistent results on still images.
- Picture Effect modes: Posterization (Colour), Posterization (B/W), Pop Colour, Retro Photo, Partial Colour (R/G/B/Y), High Contrast Monochrome, Toy Camera (Normal/Cool/Warm/Green/Magenta), and Soft High-Key.
- Creative Style modes: Standard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night Scene, Autumn leaves, Black & White, Sepia, Style Box (1-6), (Contrast (-3 to +3 steps), Saturation (-3 to +3 steps), Sharpness (-3 to +3 steps).
Lens Features:
- As part of Sony's esteemed G Master series, this lens is designed to achieve notably high resolution and sharpness through the correction of a wide variety of spherical and chromatic aberrations. Additionally, these lenses feature robust and intuitive-to-handle physical designs to benefit both photography and cine applications.
- A popular telephoto zoom designed for full-frame E-mount mirrorless cameras, this 70-200mm lens is also compatible with APS-C models where it provides a 105-300mm equivalent focal length range.
- A constant f/2.8 maximum aperture offers consistent performance throughout the zoom range and also lends greater control over focus position for shallow depth of field techniques.
- Of the three aspherical elements incorporated in the lens design, one is an XA element with superior surface precision to effectively reduce astigmatism, field curvature, coma, and other monochromatic aberrations from imagery.
- Four extra-low dispersion elements and two Super ED elements are featured in the lens design, too, and help to control chromatic aberrations and reduce colour fringing for increased clarity and colour fidelity.
- A Nano AR Coating has been applied to reduce surface reflections, flare, and ghosting for increased contrast and colour rendering in strong lighting conditions.
- An advanced double-linear and ring Super Sonic wave Motor system ensure fast, precise and accurate autofocus in both stills and video.
- Optical SteadyShot image stabilisation helps to minimise the appearance of camera shake for sharper imagery when shooting handheld with slower shutter speeds. This stabilisation system can also be combined with select camera's sensor-shift type image stabilisation for more effective control of camera blur. An OSS Mode switch lets you choose Mode 1 for general image stabilisation that is suited to most types of shooting as well as a Mode 2 setting that is specifically intended to be used with panning movements.
- A floating elements system benefits image quality when working at the 3.15' minimum focusing distance with 0.25x magnification.
- The lens barrel is equipped with three focus hold buttons and a focus range limiter switch to permit fast, intuitive operation of the lens while shooting.
- The front lens element features a fluorine coating to protect against smudges and dust from adhering to the glass surface.
- Dust- and moisture-sealed design better permits working in inclement conditions.
- A rounded 11-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.
- A removable, rotating tripod mount permits quick switching from horizontal to vertical shooting orientations.
- The included petal-shaped lens hood helps prevent flaring and has a filter access window for making adjustments to rotating filters such as polarisers and variable NDs.
- Compatible with Sony's optional 1.4x and 2x teleconverters, this lens can be easily transformed into a 98-280mm or 140-400mm optic, respectively.