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Nikon D5100 vs Nikon D850

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

NikonD5100NikonD850
Overview
ReleasedApril 2011September 2017
Image and sensor
Camera typeDSLRDSLR
Sensor formatAPS-CFull frame
Sensor typeCMOSBackside-illuminated CMOS
Sensor dimensions23.6 × 15.6 mm35.9 × 23.9 mm
Effective resolution16.2 MP45.7 MP
Largest image4928 × 32648256 × 5504
RAW recordingYesYes
Standard ISO range100–640064–25600
Sensor detailNikon DX CMOS with 16.2 million effective and 16.9 million total pixels; approximately 1.5× lens focal-length equivalent; sensor cleaning, Airflow Control System and Image Dust Off reference data46.89 million total pixels; no optical low-pass filter; sensor cleaning and image-dust-off reference data. UK effective resolution rounded to 45.7 MP; Japan specifies 45.75 million, distinct from the 45.44-million-pixel largest file.
Image formatsCompressed 14-bit NEF RAW, JPEG and simultaneous RAW plus JPEG; maximum 4928 × 3264 pixels; customisable Picture Controls and in-camera RAW processing12/14-bit NEF RAW with lossless compression, compression or no compression; medium/small RAW fixed at 12-bit lossless; JPEG, RGB TIFF and RAW plus JPEG
ISO detailISO 100–6400 in one-third stops, expandable up to ISO 25600 equivalent; Auto ISO; Night Vision is a separate monochrome special effectExpandable to equivalent ISO 32–102400; Auto ISO available
Image processorEXPEED 2EXPEED 5
Lens and shooting
Lens mountNikon F mountNikon F mount
StabilisationOptical lens stabilisationOptical lens stabilisation
Maximum continuous burst4 fps9 fps
Lens detailAutofocus with AF-S and AF-I lenses; no body autofocus motor for screw-drive lenses. Non-CPU lenses require manual exposure without metering; IX and F3AF lenses unsupportedCompatible F-mount lenses include G/E/D, other supported AF, P and AI non-CPU lenses with restrictions; DX lenses use a cropped image area. Non-AI, IX and F3AF lenses unsupported.
AutofocusMulti-CAM 1000; 11 phase-detection points including one cross-type; -1 to +19 EV at ISO 100, 20°C; AF-S/AF-C/AF-A, single-point, dynamic, auto-area and 11-point 3D tracking. Contrast-detection live view supports face, wide, normal and subject-tracking areasViewfinder Multi-CAM 20K phase detection with 153 points, 99 cross-type and 55 user-selectable; 15 support f/8. Live view uses contrast detection with face, wide, normal, pinpoint and tracking modes. Review references to a Multi-CAM 3500 module are incorrect.
Shutter1/4000 to 30 seconds in one-third or half stops, Bulb and Time with optional ML-L3 remote; flash sync 1/200 second1/8000 to 30 seconds, Bulb and Time; mechanical focal-plane and electronic front-curtain options; flash sync 1/250 second with compatible Auto FP support; electronic silent live-view modes
Burst detailApproximately 4 fps with manual focus, S/M exposure, 1/250 second or faster and remaining settings at defaults; quiet release and interval-timer shootingMain 9 fps requires optional MB-D18 grip, EN-EL18b battery and BL-5 cover; body with EN-EL15-series battery reaches 7 fps. Full-resolution silent Mode 1 reaches 6 fps. Brief silent Mode 2 reaches 30 fps for at most three seconds with fixed focus/exposure and 3600 × 2400 DX JPEG Normal files; this restricted mode is not the headline continuous rate.
Stabilisation detailOptical VR depends on the lens; no sensor-shift stabilisationNo sensor-shift stabilisation; optical VR depends on the attached lens. Electronic movie vibration reduction available with mode restrictions.
FlashBuilt-in pop-up flash; guide number approximately 12 m at ISO 100, 20°C, or 13 at manual full output; accessory shoeNo built-in flash; ISO 518 hot shoe, ISO 519 sync terminal and compatible external i-TTL Speedlights
Exposure controlsP/S/A/M, Auto, scene and special-effects modes; 420-pixel RGB matrix, centre-weighted and spot metering; ±5 EV compensation; three-frame exposure/white-balance bracketing, two-frame Active D-Lighting bracketing and two-exposure HDRP/S/A/M; ±5 EV compensation; 180K-pixel RGB metering sensor, unlike Photography Blog's erroneous 91K-pixel narrative
Video
Highest video resolution1920 × 1080 at 30 fps3840 × 2160 at 29.97 fps
Video detailH.264 MOV at Full HD 30p/25p/24p, 720p 30p/25p/24p or 640 × 424 at 30p/25p; actual NTSC rates 29.97/23.976; maximum approximately 20 minutes or three minutes with Miniature Effect. Photography Blog's 1920 × 1280, Motion JPEG AVI and five-minute passages differ from Nikon's technical sheetFull-width FX or DX UHD 3840 × 2160 at 29.97/25/23.976p; Full HD up to 59.94p and cropped silent slow-motion capture at 100/119.88 fps played at 25/29.97/23.976p. H.264 MOV/MP4; recording limit 29 minutes 59 seconds. In-camera 4K time-lapse; 8K time-lapse requires still-frame assembly in external software.
AudioBuilt-in mono microphone with adjustable sensitivity; external stereo microphone through 3.5 mm input; linear PCM audioBuilt-in stereo microphones, external 3.5 mm microphone input and headphone monitoring; PCM or AAC depending on file format; slow motion has no audio
Screen and viewfinder
ViewfinderOpticalOptical
Screen size3″3.2″
Screen dots921,0002,359,000
Touchscreen–Yes
Tilting screenYesYes
Display detailSide-hinged 3-inch vari-angle TFT, approximately 921000 dots globally, rounded to 920000 in Japan; 170° viewing angle and 100% coverage; dots count subpixelsTilting TFT, approximately 100% coverage and 170° viewing angle; maker US announcement specifies 2359K dots, Japan rounds to approximately 2.36 million; dots count subpixels
Viewfinder detailPentamirror; approximately 95% coverage, 0.78× magnification with 50mm f/1.4 at infinity and 17.9 mm eyepointPentaprism, approximately 100% FX coverage, 0.75× magnification with 50mm f/1.4 at infinity, 17 mm eyepoint and −3 to +1 dioptre adjustment
Connections and design
Wi-Fi–Yes
Bluetooth–Yes
Battery life (maker's claim)660 photographs1840 photographs
Body weight510 g915 g
Release detailNikon Japan records first sale on 21 April 2011; global announcement on 5 April 2011Announced on 24 August 2017 after a July development announcement; Nikon US states September availability and Nikon Japan specified 8 September. Main retains September because the exact first UK retail day is unconfirmed.
Recording mediaOne SD/SDHC/SDXC card slot; MMC unsupportedCurrent maker specification supports CFexpress Type B/XQD plus UHS-II SD/SDHC/SDXC; overflow, backup, RAW/JPEG separation and card copying. Launch specification had XQD plus SD.
PortsHi-Speed USB, HDMI Type C, NTSC/PAL analogue video output, 3.5 mm external microphone input and accessory terminal for optional MC-DC2 remote or GP-1 GPS; optional ML-L3 infrared remoteUSB 3.0 Micro-B, mini HDMI Type C, 3.5 mm microphone and headphone sockets, 10-pin remote terminal and flash-sync socket; Ethernet requires the optional WT-7 transmitter
Wireless connectionsNo integrated wireless networking; optional GP-1 GPS unitWi-Fi IEEE 802.11b/g and Bluetooth 4.1; SnapBridge
Battery life detailEN-EL14 rechargeable lithium-ion battery; approximately 660 CIPA photographs per chargeEN-EL15a/15b; maker CIPA claim approximately 1840 shots using the camera's own EN-EL15-series battery, not requiring the D5 battery as UK marketing prose could suggest. EN-EL15c may be supplied. Optional MB-D18 supports EN-EL18b, EN-EL15-series or eight AA cells.
ChargingExternal MH-24 charger; optional EH-5b adapter with EP-5A power connectorExternal MH-25a charger; optional EH-5c/EH-5b AC adapter and EP-5B power connector
DimensionsApproximately 128 × 97 × 79 mmApproximately 146 × 124 × 78.5 mm
Weight detailApproximately 510 g body only or 560 g including battery and SD card, excluding body capApproximately 915 g body only or 1005 g including battery and XQD card, excluding body cap
Materials–Weather-sealed construction; maker operating range 0–40°C
In the boxEN-EL14 battery, MH-24 charger, AN-DC3 strap, EG-CP14 audio-video cable, UC-E6 USB cable, DK-5 eyepiece cap, BS-1 shoe cover, DK-20 eyecup, BF-1B body cap and ViewNX 2 CD-ROMEN-EL15-series battery, MH-25a charger, HDMI/USB cable clip, UC-E22 USB cable, AN-DC18 strap, BF-1B body cap and DK-17F eyepiece; battery revision may vary

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