Providing speed, reach, and versatile recording features, the Cyber-shot DSC-RX10 IV from Sony is a compact solution for the multimedia image-makers. Featuring an updated 20.1MP 1" Exmor RS BSI CMOS sensor and BIONZ X image processor, the RX10 IV is capable of up to 24 fps shooting at ISO 12800, as well as recording UHD 4K/30p or Full HD 1080/120p video. The sensor's back-illuminated and stacked technologies afford a high degree of image quality with notable clarity and reduced noise to suit working in challenging lighting conditions. Complementing the shooting speed of the sensor and processor combination, this camera also offers a quickened 315-point focal plane phase-detection autofocus system for focus speeds as fast as 0.03 seconds.
Balancing the imaging capabilities, the RX10 IV is also characterized by its 25x ZEISS Vario-Sonnar T* zoom lens, which spans an impressive 24-600mm equivalent focal length range and uses Optical SteadyShot image stabilization to minimize the effects of camera shake by up to 4.5 stops. Its optical design incorporates eight extra-low dispersion elements and six aspherical elements to control a variety of aberrations throughout the zoom range, and its f/2.4-4 maximum aperture range benefits working in low-light conditions.
Rounding out the RX10 IV is its characteristic robust form factor, which includes both a 2.36m-dot OLED electronic viewfinder along with a tilting 3.0" 1.44m-dot touchscreen LCD. The intuitive design also features three dedicated control rings on the lens-a zoom ring, a manual focus ring, and an aperture ring-and the aperture ring can be de-clicked for smooth, silent aperture adjustments. The magnesium-alloy body is also weather-sealed to permit working in trying environments. Additionally, for sharing and control flexibility, built-in Wi-Fi and Bluetooth are also available for wireless image sharing and remote camera control from a linked smartphone or tablet.
This sensor is paired with the BIONZ X image processor and a newly developed front-end LSI that dramatically improves the speed and throughput of the entire imaging system, enabling continuous shooting with AF/AE at up to 24 fps. An expanded buffer makes continuous shooting possible for longer bursts, up to 249 JPEGs, and for convenience, bursts can be seen in groups during playback, rather than single images, for faster review. The front-end LSI is also able to improve overall quality of the images, especially at higher sensitivities. Additionally, another advantage of this setup is raw output, which provides outstanding color fidelity and image quality.
In order to make operation seamless, the RX10 IV benefits from reduced blackout for easier tracking when using the EVF or LCD. Furthermore, an AF-A mode is now available, which will allow the camera to automatically switch from AF-S and AF-C mode as the situation needs. Users can also display the phase-detection area to help users focus on their subject.
Complementing the lens' reach, Optical SteadyShot image stabilization also helps to minimize the appearance of camera shake by up to 4.5 stops for sharper handheld shooting. The lens also sports a rounded nine-blade diaphragm to produce smooth bokeh, and, despite its long reach, can also focus as closely as 1.2" with a 0.42x maximum magnification for working with close-up subjects.
For advanced users, picture profiles and image controls are available, including the S-Log2 and S-Log3 gammas, which are able to help expand the dynamic range by recording a flat image. Gamma Display Assist helps users view a more natural image when shooting with S-Log2/3. Other options such as timecode, zebras, peaking, and more are present for making shooting and editing easier. When recording internally, users will record video with a 4:2:0 sampling at 8-bit, however, to even further improve image quality the RX10 IV has clean HDMI output for use with an external recorder. This allows users to capture 4:2:2 uncompressed video and save in an edit-ready format.
A Photo Capture function is built directly into the camera, allowing shooters to quickly save an 8.29MP still from their UHD 4K movies. Full HD can also benefit from this feature, where users will be able to pull a 2MP still. Additionally, the camera is NTSC/PAL switchable, making it usable around the world.
- A bright, high-resolution XGA OLED Tru-Finder sports a 2.36m-dot resolution for clear eye-level monitoring of the scene, as well as the ability to preview exposure adjustments prior to shooting.
- Alternatively, a rear 3.0" 1.44m-dot Xtra Fine TFT LCD is available for monitoring and review, and features a 109° upward, 41° downward tilting design to benefit working from high and low angles. The screen is also a touch-panel, which affords more intuitive control over focus point selection, playback, and menu navigation.
- A robust magnesium-alloy body design is both dust- and moisture-resistant to support use in harsh environments.
- The manually-operated aperture ring permits intuitive tactile control over exposure settings, and the ring can be de-clicked for smooth, silent performance to suit video applications. Manual focus and zoom rings are also incorporated in the lens' design.
- A top LCD panel can be used to quickly check key exposure and other settings.
- A range of customizable function buttons can be assigned to any one of 58 different custom functions.
- The included NP-FW50 rechargeable lithium-ion battery offers approximately 400 shots per charge when working with the LCD monitor, or 370 shots per charge when working with the EVF.
- Both an external microphone jack and a headphone jack are available for using optional external mics and monitoring your audio in real time.
- Built-in Wi-Fi and Bluetooth permit wirelessly sharing imagery to a linked mobile device for instant sharing online, and also allows a smartphone or tablet to remotely control the camera or display a live view image. Mobile devices can be paired via NFC or via a QR code displayed on the camera for non NFC-enabled phones or tablets.
- Zoom Assist can be assigned to a custom function button and used to automatically zoom out from the scene in order to re-locate a subject, and then released to quickly return to the zoomed-in position.
- Step Zoom lets you configure the zoom ring to only cycle through fixed popular focal lengths as the ring is rotated, including 24, 28, 35, 50, 70, 85, 100, 135, 200, 300, 400, 500, and 600mm. Quick Zoom, on the other hand, can be assigned to a custom function button and lets you move throughout the zoom range in a fluid, seamless manner by rotating the zoom ring.
- A Silent Shooting mode makes use of an electronic shutter function for completely silent performance that is ideal for photographing in noise-sensitive areas. This electronic shutter also permits working with shutter speeds up to 1/32,000 sec for photographing in bright conditions.
- Clear Image Zoom can be used to magnify the center of scenes by 2x to effectively extend the reach of the lens. This digital zoom technology uses an intelligent interpolation process to minimize the amount of image degradation in order to produce realistic, high-quality images.
- Eye AF is a dedicated autofocus mode that bases focus on recognized subjects' eye for portraits, and can be configured to prioritize either the subject's right or left eye. It is also compatible with animals' eyes to benefit pet and wildlife photographers.
- White balance adjustment can be finely controlled using detailed sliders that span the amber-blue and magenta-green axes for more precise control over how color tones appear in various lighting conditions.
- Benefitting manual focus operation, Manual Focus Assist can be used to magnify a portion of the scene for making more precise, detailed adjustments. Peaking is also available to highlight strong edges of contrast for more objective determining over sharp focus.
- A Dual Rec mode allows you to record 17MP stills, without pixel binning, while simultaneously recording video. Auto Dual Rec takes this process further by automatically recording stills at a chosen frequency or when a new composition or subject is recognized.
- When recording in UHD 4K, 8MP still frame grabs can be saved during playback for use as a still image. If working in Full HD, 2MP stills can be taken from video files.
- Scene Selection: Portrait, Sports Action, Macro, Landscape, Sunset, Night Scene, Handheld Twilight, Night Portrait, and Anti Motion Blur.
- Picture Effect: Toy Camera, Pop Color, Posterization, Retro Photo, Soft High-Key, Partial Color, High Contrast Mono, Soft Focus, HDR Painting, Richtone Monochrome, Miniature, Watercolor, and Illustration.
- Creative Style: Standard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night Scene, Autumn Leaves, Black & White, Sepia, and Style Box.