Camera Format-Full-Frame (1.0x Crop Factor)
Pixels-Actual: 46.89 Megapixel,,Effective: 45.7 Megapixel
Max Resolution-45.4 MP: 8256 x 5504
Aspect Ratio-1:1, 3:2, 4:5
Sensor Type / Size-CMOS, 35.9 x 23.9 mm
File Formats-Still Images: JPEG, RAW, TIFF,,Movies: MOV, MP4, MPEG-4 AVC/H.264,,Audio: AAC, Linear PCM (Stereo)
Dust Reduction System-Yes
Memory Card Type-XQD,SD,SDHC,SDXC
A first for Nikon DSLRs, a 45.7MP BSI CMOS sensor is used for high-resolution shooting, impressive low-light quality, and fast readout speeds to benefit continuous shooting, movies, and time-lapse recording. The back-illuminated design of the sensor affords noticeably cleaner high-sensitivity output for reduced noise when working at high ISO values, up to a native ISO 25600, as well as vivid and smooth quality at sensitivities as low as ISO 64. The sensor's design also omits the conventional optical low-pass filter in order to achieve the greatest sharpness and resolution from the sensor.
Benefitting the sensor is the apt EXPEED 5 image processor, which affords a wealth of speed throughout the camera system, including the ability to shoot continuously at 7 fps for up to 51 consecutive 14-bit lossless compressed raw files in a single burst. When working with the optional MB-D18 grip and EN-EL18a/b battery, this shooting rate can be increased to 9 fps, and up to 30 fps shooting is possible when working in a DX crop mode during Silent Live View.
Utilizing the sensor and processor attributes for more than just still imagery, the D850 is also a more-than-capable multimedia camera. 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.
Benefitting video recording, 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 can be used to benefit manual focus control and a Zebra Stripes option is also available to help detect over-exposed areas within the frame. Audio recording can be handled using the built-in stereo microphone or an optional external mic can be added via the 3.5mm stereo jack for greater control over quality, 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 maximize battery life.
The intelligent Scene Recognition System with 3D Color Matrix Metering III utilizes a 180,000-pixel RGB sensor to evaluate and analyze all aspects within a scene, including brightness, contrast, subject distance, and the scene colors, to quickly determine an accurate exposure and white balance setting to best render the scene at hand. The information gathered is also checked against onboard reference images to ensure consistency from image to image in regard to exposure, white balance, i-TTL flash settings, and subject-tracking AF performance.