45.7MP FX-Format BSI CMOS Sensor With EXPEED 5 Processor
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 sensor’s back-illuminated design offers noticeably cleaner high-sensitivity output for reduced noise when working at high ISOs Nikon D750, up to native ISO 25600, as well as smooth, vivid quality at sensitivities as low as ISO 64. The sensor also bypasses the conventional optical low-pass filter to achieve the highest sharpness and resolution of the sensor.
The apt EXPEED 5 image processor benefits from the sensor, which offers great speed throughout the camera system, including the ability to shoot continuously at 7fps for up to 51 consecutive 14-bit lossless compressed raw files in a single burst. When working with the optional Nikon D750 With AF-S 24-120mm f/4G ED VR battery grip and EN-EL18a/b battery, this shooting speed can be increased to 9 fps, and up to 30 fps shooting is possible when working in a DX crop mode during silent viewing. Live.
153-point Multi-CAM 20K autofocus system
Complementing the rendering capabilities and speed of the image sensor is the robust Multi-CAM 20K AF system, which features 153 total phase detection points, including 99 cross-type sensors for enhanced subject recognition, and 55 of the points are selectable for greater composition freedom. Taking advantage of the use of super telephoto lenses and teleconverters, 15 of the points, including nine selectable points, support an effective aperture of f/8, and all 153 points support working with an effective aperture of f/5.6 or brighter.
Managing the abundance of focus points is a dedicated AF motor, offering fast response times to benefit tracking fast, randomly moving subjects, even at the top 7fps shooting speed. The AF motor also contributes to improved focus sensitivity, with all points capable of focusing -4 EV for working in very dark, low-contrast situations.
To increase the versatility of the focus system, different AF-area modes can be selected to support different types of subjects:
- Single Point AF: The Nikon D750 Camera uses a single point to find focus.
- Dynamic Area AF: Available with selections of 25, 72, or 153 points, this mode uses a single primary focus point to lock focus and then uses surrounding points to maintain focus while tracking erratically moving subjects.
- Group Area AF: This mode treats smaller groups of AF points as a single point for a wider field of recognition, and is well suited for tracking faces or other detailed subjects.
- 3D Tracking: Using color information from a subject, this mode uses all 153 points to maintain focus on a moving subject while you press the shutter button halfway.
- Auto-area AF: This mode uses all 153 points to quickly identify the main subject and then prioritizes recognized faces as portrait subjects in any servo AF mode.
Lastly, a unique auto AF auto-adjust function can be employed to ensure the best possible focus for each mounted lens. Instead of relying on shooting distance graphs, this feature allows you to manually achieve precise focus in live view, and then have the AF system calibrate to the set focus position to alleviate front and back focus issues.