Nikon D7100

Nikon D7100

Type	Digital single-lens reflex
Sensor	23.5 mm × 15.6 mm Nikon DX format RGB CMOS sensor, 1.5 × FOV crop
Maximum resolution	6000 × 4000 pixels (24.1 megapixels)
Recording medium	Secure Digital, SDHC, SDXC compatible (Dual Slot, UHS-I protocol support)
Lens	Interchangeable, Nikon F-mount
Focus	Manual, Auto, Focus-lock, Electronic rangefinder, Live preview and video modes: Subject-tracking, Face-priority, Wide-area, Normal-Area
Flash	Built in Pop-up, Guide number 12m at ISO 100, Standard ISO hotshoe, Compatible with the Nikon Creative Lighting System, featuring commander mode for wireless setups
Shutter	Electronically-controlled vertical-travel focal-plane shutter
Shutter speed range	30 s to 1/8000 s in 1/2 or 1/3 stops and Bulb, 1/250 s X-sync
Exposure metering	TTL 3D Color Matrix Metering II metering with a 2,016 pixel RGB sensor
Exposure modes	Auto modes (auto, auto [flash off]), Advanced Scene Modes (Portrait, Landscape, Sports, Close-up, Night Portrait), programmed auto with flexible program (P), shutter-priority auto (S), aperture-priority auto (A), manual (M), quiet (Q) and Effect mode.
Metering modes	3D Color Matrix Metering II, Center-weighted and Spot
Focus areas	51-area AF system, Multi-CAM 3500DX AF Sensor Module Area modes: 3D-tracking, Auto-area, Dynamic-area, Single-point
Focus modes	Instant single-servo (AF-S); continuous-servo (AF-C); auto AF-S/AF-C selection (AF-A); Full time AF (AF-F); manual (M)
Continuous shooting	6 frame/s or 7 frame/s in 1.3x crop mode.
Viewfinder	Optical 0.94× Pentaprism, 100% coverage
Flash bracketing	2 or 3 frames in steps of 1/3, 1/2, 2/3, 1 or 2 EV
Custom WB	Auto, Incandescent, Fluorescent, Sunlight, Flash, Cloudy, Shade, Kelvin temperature, Preset
Rear LCD monitor	3.2-inch 1,228,800 dots TFT-LCD
Battery	Nikon EN-EL15 Lithium-Ion battery (14Wh)
Optional battery packs	Nikon MB-D15 battery grip
Weight	Approx. 675 g (1.488 lb)

The Nikon D7100 is a 24.1-megapixel digital single-lens reflex camera model announced by Nikon in February 2013.^[1] It is a prosumer model that replaces the Nikon D7000 as Nikon's flagship DX-format camera, fitting between the company's entry-level and professional DSLR models. Nikon gives the D7100's Estimated Selling Price in the United States as US$949.95 for the body alone.^[2]

Features

• 24.1 effective megapixel CMOS, Nikon DX format image sensor, without an optical low-pass filter^[3]
• Nikon EXPEED 3 image-processing engine;
• Advanced Multi-CAM 3500DX autofocus sensor module with 51 focus points;
• 3D Color Matrix Metering II 2,016-pixel RGB sensor;
• HD video mode with autofocus. Up to 1080p at 24p, 25p and 50i (50i true interlaced: based on 50 sensor readouts per second), 30p and 60i (60i true interlaced), 720p at 50p or 60p frames per second (fps). H.264/MPEG-4 AVC Expeed video processor. HDMI out with support of uncompressed video (clean HDMI)
• ISO sensitivity 100 to 6400 (up to 25600 with boost);
• 3.2-inch, TFT LCD monitor with 1,228,800-dot resolution (RGBW alignment);
• Central cross-type focus points support autofocusing with lenses with a maximum aperture of f/5.6;
• Center cross-type focus point supports autofocusing with lenses with a maximum aperture of f/8;
• DX-sized sensor with 1.5x crop factor; (additional 1.3x crop mode available)
• Viewfinder with approximately 100% frame coverage and 0.94x magnification ratio;
• GPS interface for direct geotagging supported by Nikon GP-1.

Video performance

• When using the D7100 as a video capture mode, the camera will display audio meter overlays over the left edge of the LCD.
• The D7100 does not allow the lens aperture to be adjusted during video capture.
• The slowest shutter speed in video capture mode appears to be 1/25th of a second.

Advantages and disadvantages

The sensor of the D7100 uses Nikon's DX format, resulting in a crop factor of 1.5x. Additionally the software enables an additional crop of 1.3x (resulting in approximately 1.95x compared to 35mm). Selecting this additional crop mode allows faster focusing in video mode and also enables interlaced video recording modes. This additional crop feature gives D7100 an advantage in using tele angle lens for shooting wildlife or things at a distance. The 51-area AF system sensors will be covering a bigger proportion of the extra 1.3 crop factor image area, which is important for capturing high-speed moving subjects during shooting.^[4]

References

1. Nikon introduces the D7100
2. "D7100 Nikon Digital Camera". Nikon Corporation. Retrieved October 31, 2014.
3. Google Image: Nikon D7100 sample, review and user images, >20MPix JPEG or Raw (NEF)
4. "The Best Midrange DSLR is the Nikon D7100". May 17, 2013.

External links

• Nikon D7100 Manual Nikon
• Nikon D7100 – Nikon global website
• Nikon D7100 In-Depth Review DPreview
• Nikon D7100 review Cameralabs