Nikon D7100

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. At launch, Nikon gave the D7100 Estimated Selling Price in the United States as US$949.95 for the body.[2]

Nikon D7100
Overview
TypeDigital single-lens reflex
Lens
LensInterchangeable, Nikon F-mount
Sensor/medium
Sensor23.5 mm × 15.6 mm Nikon DX format RGB CMOS sensor, 1.5 × FOV crop
Maximum resolution6000 × 4000 pixels
(24.1 megapixels)
ASA/ISO rangeISO 100–6400 in 1/3 EV steps, up to 25600 with Hi (boost) menu item
Recording mediumSecure Digital, SDHC, SDXC compatible (Dual Slot, UHS-I protocol support)
Focusing
FocusManual, Auto, Focus-lock, Electronic rangefinder,
Live preview and video modes: Subject-tracking, Face-priority, Wide-area, Normal-Area
Focus modesInstant single-servo (AF-S); continuous-servo (AF-C); auto AF-S/AF-C selection (AF-A); Full time AF (AF-F); manual (M)
Focus areas51-area AF system, Multi-CAM 3500DX AF Sensor Module
Area modes: 3D-tracking, Auto-area, Dynamic-area, Single-point
Exposure/metering
Exposure modesAuto 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.
Exposure meteringTTL 3D Color Matrix Metering II metering with a 2,016 pixel RGB sensor
Metering modes3D Color Matrix Metering II, Center-weighted and Spot
Flash
FlashBuilt 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
Flash bracketing2 or 3 frames in steps of 1/3, 1/2, 2/3, 1 or 2 EV
Shutter
ShutterElectronically-controlled vertical-travel focal-plane shutter
Shutter speed range30 s to 1/8000 s in 1/2 or 1/3 stops and Bulb, 1/250 s X-sync
Continuous shooting6 frame/s or 7 frame/s in 1.3x crop mode
Viewfinder
ViewfinderOptical 0.94× Pentaprism, 100% coverage
Image processing
Custom WBAuto, Incandescent, Fluorescent, Sunlight, Flash, Cloudy, Shade, Kelvin temperature, Preset
General
Rear LCD monitor3.2-inch 1,228,800 dots TFT-LCD
BatteryNikon EN-EL15 Lithium-Ion battery (14Wh)
Optional battery packsNikon MB-D15 battery grip
WeightApprox. 675 g (1.488 lb)
List price$949.95 (body only)
Made in Thailand
Chronology
Released21 February 2013
PredecessorNikon D7000
SuccessorNikon D7200
References
Nikon D7100 product homepage

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 covers a bigger proportion of the extra 1.3 crop factor image area, which is important for capturing high-speed moving subjects during shooting.[4]

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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.
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