Nikon D4s is here.
16.2MP FX-Format CMOS Sensor and EXPEED 4 Image Processor
The 16.2 megapixel full-frame (FX) CMOS sensor and EXPEED 4 image processor work in tandem to deliver high overall image quality with notable detail, dynamic range, color accuracy, and low-light sensitivity to a native ISO 25600, which is further expandable to an exceptional ISO 409600. Furthermore, the EXPEED 4 processor also contributes to a wealth of speed throughout the camera, including a full-resolution JPEG continuous shooting rate of 11 fps for up to 200 shots with maintained autofocus and auto-exposure metering. When working in the 14-bit RAW shooting mode, up to 104 shots can be recorded at 11 fps.
Full HD Movie Recording
Also benefitting from the enhanced processing power is the ability to records full HD 1080p video at frame rates up to 60 fps. Multi-area modes enables you to narrow your effective field of view during recording, too, in FX, DX, and 2.7x Crop settings to offer more versatility during shooting. ISO Auto Control is available when working in manual exposure mode as well as real-time adjustable audio settings with enhanced wind noise reduction and selectable frequency ranges such as Wide Range and Voice Range.
Recording to an optional external recorder is possible in order to gain an uncompressed video signal via the HDMI port and, when recording externally, use of the camera’s LCD monitor for live view monitoring is possible. Additionally, simultaneous recording to both memory cards and an external recording device is also possible for instant backing up and duplicating of files. 2MP still images can also be recorded simultaneously during video recording.
51-Point Advanced Multi-CAM 3500FX AF Sensor
Supporting the exceptional imaging capabilities of the D4S is an apt autofocus system that employs up to 51 distinct points, with options available to use 9, 21, or all 51 points depending on the situation. 3D Tracking, as part of the intelligent Scene Recognition System, also works to benefit maintained focusing on moving subjects for greater accuracy when shooting at high continuous shooting speeds.
For even faster initial focusing and subject recognition, five AF sensors can be used together as a single focus point with the Group Area AF setting. Furthermore, Single-point AF, Dynamic-area AF (with 9, 21, or 51 points selectable), 3D-tracking (using all 51 points), and Auto-area AF modes are also available.
When working in live view, for either still or movie shooting, a contrast-based AF system is employed to acquire focus precisely and can function in continuous, full-time servo mode to better-suit working with moving subjects. Four distinct AF-area modes are available when using the contrast-detection focusing method: Face-priority AF, Wide-area AF, Normal-area AF, and Subject-tracking AF.
Scene Recognition System and Exposure Metering
The intelligent Scene Recognition System with 3D Color Matrix Metering III utilizes a 91,000-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.
Via: B&H
