Combining speed and resolution, the Nikon D850 offers an impressive solution for capturing both stills and video. Featuring a 45.7MP BSI CMOS sensor and EXPEED 5 image processor, it is capable of a 7fps continuous shooting rate for up to 51 consecutive 14-bit lossless compressed raw files in a single burst, an expandable sensitivity range from ISO 32 to 102400, and 4K UHD video recording. An 8K time-lapse recording mode is also available, as well as specialised modes for digitising film negatives and for focus stacking applications. The back-illuminated design of the sensor is able to capture impressive detail and clarity when working in low-light conditions and an optical low-pass filter has been omitted in order to capture the best possible sharpness and resolution from the sensor.
This is complimented by a Multi-CAM 20K 153-point AF system that offers 99 cross-type sensors for focusing accuracy in a variety of lighting conditions. 55 of the points are selectable for greater compositional freedom, and benefitting the use of super telephoto lenses and teleconverters, 15 of the points, including nine selectable points, are compatible with an effective aperture of f/8, and all 153 points support working with effective aperture of f/5.6 or brighter. The AF engine also contributes to enhanced focusing sensitivity, with all points capable of focusing -4 EV for working in very dark, low-contrast situations.
A variety of different AF-area modes can be selected to support varying types of subject matter. The include Single-Point AF, Dynamic-Area AF, Group-Area AF, 3D-Tracking, and Auto-Area AF. A unique auto AF fine-tune function can also be used to ensure the best possible focus for each mounted lens. Rather than relying on photographing distance charts, this function lets you achieve precise focus manually in live view, and then have the AF system calibrate itself to the fine-tuned focus position in order to alleviate front- and back-focusing issues.
Video recording is possible at 4K UHD (3840 x 2160) using either the full-frame area or a DX crop area in 30p, 25, or 24p frame rates. Full HD 1080p video recording is also supported at up to 120p for slow motion playback, and video files can be saved to the in-camera memory cards or as an uncompressed file to an optional external recorder via HDMI out. A dedicated power aperture button (Pv) makes it possible to achieve smooth, continuous exposure transitions when switching from light to dark areas, and Auto ISO can also be used to maintain a consistent brightness when working in changing lighting situations. Focus Peaking and a Zebra Stripes option are also available to benefit manual focus control, and detect over-exposed areas within the frame. Audio recording can be captured using the built-in stereo microphone or an optional external mic via the 3.5mm stereo jack, and live monitoring is possible via the headphone jack.
The D850 also blends both still and video capabilities with the ability to produce 8K time-lapses using the Interval Timer Mode or in-camera 4K time-lapse movies, with the ability to record up to 9999 exposures for either method. This system also makes use of a silent interval timer, which produces no shutter noise, does not contribute to wear on the shutter mechanism, and is energy efficient to maximise battery life.
The camera is finished with a sleek physical design that includes a large optical pentaprism viewfinder with 0.75x magnification for a wide, bright, clear view. Alternatively, the 3.2" 2.36m-dot LCD touchscreen can be used for live view shooting, playback, menu navigation, and its tilting design makes it easy to work from high and low angles. Images can be recorded using the one XQD memory card slot or one SD memory card slot, which allows for overflow recording, in-camera file-duplicating, or the ability to record raw and JPEG files to different cards.
The body is dust and weather-sealed for peace of mind when working in changeable conditions, and the optional MB-D18 grip can be added to boost overall shooting times and continuous shooting rates. Built-in SnapBridge is also included to allow for wireless sharing of low-resolution imagery and remote live view on a linked mobile device, and an optional WT-7a Wireless Transmitter can also be used for faster wireless transferring of files.
The Nikon D850 comes with a EN-EL15a Rechargeable Lithium-Ion Battery, MH-25A Battery Charger, UC-E22 USB 3.0 Cable, HDMI/USB Cable Clip, AN-DC18 Camera Strap, BF-1B Body Cap and DK-17F Eyepiece. The included EN-EL15a rechargeable lithium-ion battery is CIPA-rated to last for approximately 1840 shots per charge. If paired with the optional MB-D18 grip and EN-EL18a/b battery, you can record approximately 5140 shots per charge.
