Sony launches A7 IV with 4K video support and a 33-megapixel sensor
By Sanjay Maurya
News Highlights
- Sony unveiled the Alpha 7 IV, also known as the A7 IV.
- Sony claims that the Alpha 7 IV has 30 percent higher face and eye identification accuracy for people than the Alpha 7 III.
- The camera can also shoot 4K at 60 frames per second.
On 21st October, Sony unveiled the Alpha 7 IV, also known as the A7 IV. The new Sony camera succeeds the A7 III, the company’s successful entry-level full-frame camera that debuted in 2018. Sony said that the Alpha 7 IV has increased photographic skills while also adding good video capabilities, making it a good overall hybrid camera. A 33-megapixel full-frame back-illuminated Exmor R CMOS sensor is featured in the new Sony A7 IV.
Meanwhile, Sony’s flagship Alpha 1’s BIONZ XR processing engine is used to enable high-speed autofocus and continuous shooting up to 10 frames per second with AF/AE tracking. The 759 phase-detection autofocus points cover about 94 percent of the image area, and Sony claims that the Alpha 7 IV has 30 percent higher face and eye identification accuracy for people than the Alpha 7 III. For the first time, the camera can track the eyes of birds and animals in stills and films.
Sony A7 IV Specification
- 33MP BSI CMOS full-frame sensor
- Up to 10 fps shooting in lossy Raw with large buffer
- Up to 5.5EV in-body stabilisation
- Up to 30p full-width oversampled 4K from 7K
- Super35 / APS-C mode in 4K/60p
- Capture 10-bit video or HEIF stills
- S-Cinetone colour mode in H.265 video
- OLED viewfinder with 3.69 million dots
- 1x CFe A/UHS-II, 1x UHS-II SD (1x CFe A/UHS-II, 1x UHS-II SD)
- Continuous Bluetooth LE connection
The camera can also shoot 4K at 60 frames per second. However, it can only do it in Super 35mm mode, which cuts the image rather than using the entire sensor width. The camera can also record videos in full 10-bit depth with 4:2:2 colour sampling, as well as intra-frame recording in XAVC S-I. The camera has a flip display, a 3.68-million-dot EVF with 1.6x magnification, and two card slots, one for SD cards and the other for SD or CFexpress Type A cards. The body-only version of the camera costs $2500 (INR 1,87,168) and will be available in December 2021. For $2,700, a kit including Sony’s FE 28-70mm F3.5-5.6 OSS zoom lens will be available.
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