Sony - Alpha 7 IV Full-Frame 33-Megapixel Mirrorless Camera with SEL28702 Lens - Black
Model: ILCE7M4MB
SKU: 6670597
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Customers admire the outstanding image quality provided by this product, which is its most frequently praised feature. Users also appreciate the fast and accurate autofocus performance, alongside the intuitive interface that makes the device easy to navigate. Additionally, many find the battery life to be reliable for their needs.
The full-frame 33MP1 Exmor R back-illuminated CMOS sensor delivers outstanding speed and superb image quality. The use of copper wiring contributes to higher transmission speeds and faster AD (analogue to digital) conversion, while fast sensor readout enables 10-bit 4:2:2 4K recording up to 60p11.
The BIONZ XR engine, also used in the Sony Alpha 1 and Alpha 7S III models, provides up to an 8x2 increase in processing speed. The engine concentrates real-time processing of AF (autofocus), image recognition and image quality adjustment to minimize processing latency for greatly increased movie and still processing power.
Building on the capabilities of the back-illuminated Exmor R image sensor, the powerful BIONZ XR processing engine reveals even higher subjective resolution combined with exquisite detail and texture even in medium and high sensitivity ranges. Impressively low levels of noise are achieved throughout the standard range of ISO 100-51200 (expandable to ISO 50-204800 for stills and ISO 100-102400 for movies).
Taking advantage of the camera's full dynamic range of 15 stops¹, the Alpha7 IV uses image data from the sensor's 33-megapixels1 to render remarkably delicate detail in landscapes and scenery. This stunning image quality is based on Sony's unrivalled experience at the front lines of both still-image and movie creation.
The Alpha 7 IV gives you an impressive range of video recording options. Full pixel readout without binning allows 4K 60p² recording in Super 35 mode providing high-resolution smooth footage that can be edited to 2x and 2.5x slow-motion when rendered to 30p or 24p in post-production, and 4K 24p or 30p full pixel readout without binning in full-frame with 7K² oversampling. For highly detailed and rich 4K content.
Thanks to the increased³ 33MP⁴ resolution, the Alpha 7 IV oversamples 7K² when recording full-frame 4K² movies at up to 30p, resulting in high-resolution, highly detailed 4K² for beautifully expressive, rich images. Select the mode that best suits your purpose, and let the camera deliver.
The Alpha 7 IV supports S-Cinetone, based on expertise gained through development of the VENICE CineAlta professional cinema camera line. This look is responsible for the beautiful skin tones for which Cinema Line cameras like the FX9, FX6 and FX3 are widely acclaimed. It delivers natural mid-tones for healthy-looking skin color, plus soft colors and gorgeous highlights.
For the first time in the Sony Alpha series, the Alpha 7 IV provides compensation for focus breathing⁵. Focus breathing is any change in a lens's angle of view that corresponds to changes in focus. Sony's original Clear Image Zoom technology is used to automatically maintain a consistent angle of view for more movie-like focus transitions.
Answering requests from professional creators, the brand-new Focus Map⁶ feature lets you easily visualize depth of field (DOF) and which areas are in and out of focus when you're in movie mode. In use, focus information (depth map) is overlaid on the display of the live view in real time.
The AF Assist⁷ function, inherited from the Cinema Line FX6, lets you seamlessly switch to and from autofocus and manual focus during movie shoots. When this feature is turned on, rotating the focus ring temporarily switches operation from autofocus to manual focus to allow you to deliberately shift your focus to a different subject. Autofocus is resumed when ring rotation stops.
The Fast Hybrid AF system, combining 759 phase-detection AF points⁸ and 425 contrast-detection AF points with a wide coverage of roughly 94% of the image area for both stills and movies, has evolved even further to achieve greater speed, accuracy and tracking performance. This vast collection of data is analyzed in real time by the latest powerful BIONX XR processing engine to achieve the AF system's impressive results.
The superior power of the BIONZ XR processing engine has led to improvements in both Real-time Eye AF and Real-time Tracking⁹ features. Improved face detection translates into 30% better eye-detection accuracy compared to Alpha 7 III. AI (Artificial Intelligence) is used to detect and track the eyes and face of the subject (human, animal or bird)¹⁰ with extremely high precision.
Keeping the targeted eye in focus so you can concentrate on composition. The high speed of the latest image BIONZ XR processing engine provides a significant boost to Real-time Eye AF performance, even when the subject is looking up, down, or sideways. It is also possible to use Touch Tracking⁹ to initiate Real-time Tracking of any subject in the frame, simultaneously initiating Real-time Eye AF if an eye is detected, simply by touching the screen.
Fast, accurate focus for difficult animal shots¹⁰. By setting the camera's subject detection type to "Animal" in advance, you can automatically detect and track⁹ an animal's eyes, for greater success in both wildlife shots and photos and movies of your pets at home.
The Real-time Eye AF function is now capable of detecting the eyes of birds and tracking them in real time¹⁰, for both still shots and movies. The BIONZ XR processing engine runs optimized AF and tracking algorithms to ensure uninterrupted tracking¹⁰ even for birds in flight, whose movement is hard to predict.
Both the mechanical and electronic shutters allow continuous shooting of 33MP1 RAW+JPEG still images at up to 10 fps¹¹ with AF/AE tracking. The powerful BIONZ XR processing engine and increased buffer memory allow faster writing to memory cards, so you can shoot more than 1000 compressed RAW+JPEG frames (more than 2000 altogether, up to a full memory card)¹².
All it takes is a USB¹³ connection to turn the full-frame Alpha 7 IV into a high-performance webcam. There's no need for complicated advance setup; just connect the camera to a computer or smartphone via USB¹⁴, select "Live Stream (USB Streaming)", and you're set.
Make in-camera recordings with the amazing richness of 4K 10-bit depth and 4:2:2 color sampling, with either Long GOP H.264 (XAVC S), Long GOP H.265 (XAVC HS13) or All-Intra (XAVC S-I) frame encoding, for far greater flexibility in image grading, post-processing, and compositing.
All-Intra (XAVC S-I) recording encodes every frame independently at bitrates of up to 600Mbps¹⁵, capturing complex motion more accurately and allowing more efficient editing workflows.
The Alpha 7 IV provides S-Log2 and S-Log3 gamma curves, with the latter allowing capture of 15+ stops¹ of dynamic range. The S-Gamut3 and S-Gamut3.Cine color gamut settings make it easy to match Alpha 7 IV footage with footage from VENICE digital cinema cameras or Cinema Line cameras like the FX6 and FX3.
The Alpha 7 IV's in-body image stabilization allows effective use with a wide range of lenses. The high-precision stabilization unit and gyro sensors work with stabilization algorithms to achieve up to 5.5 steps¹⁶ of shutter-speed compensation to maximize the performance of the camera's 33MP⁴ sensor.
Active Mode¹⁷ uses the camera's stabilization unit, gyro sensors and sophisticated algorithms for highly effective in-camera optical image stabilization during movie shoots. The powerful processing engine precisely detects the required amount of compensation for smooth stabilization in all formats, including 4K, without compromising the Alpha 7 IV's compact size and mobility.
The Alpha 7 IV features a 3.68 mega-dot⁴ high-definition Quad-VGA OLED viewfinder, providing roughly 1.6 times the resolution of the Alpha 7 III viewfinder, with a 37.3° field of view and a 23mm high eyepoint.
The large, side-opening 3-inch 1.03-mega-dot⁴ touch-panel LCD monitor offers ample brightness for clear viewing in outdoor settings and its 3:2 aspect ratio makes efficient use of the display area. The vari-angle mechanism allows flexible positioning and framing for handheld shots, gimbal-mounted or documentary-style self-shooting, or very low ground-level shots.
The Alpha 7 IV has improved dust and moisture resistance¹⁸ to provide outstanding reliability even in challenging outdoor shooting environments. Design refinements include more sealing at body seams and the battery compartment cover³, a redesigned lens lock button, and extra cushioning around the mount. A lightweight, high-rigidity magnesium alloy used for the camera's top cover, front cover, and internal frame provides excellent durability.
