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Nikon D3X vs Nikon D7500

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

Better figure, where one is clearly better

NikonD3XNikonD7500
Overview
ReleasedDecember 2008June 2017
Image and sensor
Camera typeDSLRDSLR
Sensor formatFull frameAPS-C
Sensor typeCMOSCMOS
Sensor dimensions35.9 × 24 mm23.5 × 15.7 mm
Effective resolution24.5 MP20.9 MP
Largest image6048 × 40325568 × 3712
RAW recordingYesYes
Standard ISO range100–1600100–51200
Sensor detail25.72 million total pixels; FX, DX and 5:4 image areas; maximum DX image 3968 × 2640 and 5:4 image 5056 × 4032. No automatic sensor-cleaning mechanism; Image Dust Off reference data can be used with optional Capture NX 2UK effective resolution rounded to 20.9 MP; Japan specifies 20.88 million; 21.51 million total pixels, no optical low-pass filter, sensor cleaning and image-dust-off reference data
Image formats12-bit or 14-bit NEF RAW, uncompressed, compressed or losslessly compressed; JPEG, TIFF RGB and RAW plus JPEG12/14-bit NEF RAW with lossless or ordinary compression; JPEG and RAW plus JPEG
ISO detailExpanded equivalents ISO 50–6400; Auto ISOExpandable to equivalent ISO 50–1640000; Auto ISO available
Image processorEXPEED image-processing system; Scene Recognition SystemEXPEED 5
Lens and shooting
Lens mountNikon F mountNikon F mount
StabilisationOptical lens stabilisationOptical lens stabilisation
Maximum continuous burst5 fps8 fps
Lens detailAF coupling supports compatible screw-drive lenses; DX lenses supported with automatic crop. Supported non-CPU AI lenses permit aperture-priority and manual exposure, with colour matrix metering when lens data is entered; IX and F3AF lenses unsupportedDX-format angle of view approximately 1.5× FX focal length; supported G/E/D, AF and P lenses with restrictions. AI non-CPU lenses usable in manual mode with no metering; non-AI, IX and F3AF lenses unsupported.
AutofocusMulti-CAM 3500FX phase detection; 51 points including 15 cross-type; single-point, auto-area and dynamic 9/21/51-point modes with 3D tracking; AF fine-tuningViewfinder Advanced Multi-CAM 3500II phase detection with 51 points, 15 cross-type and centre point supporting f/8; −3 EV sensitivity at ISO 100 and 20°C. Dynamic, 3D tracking and group-area modes; live view uses contrast detection with face, wide, normal and subject-tracking modes.
Shutter1/8000 to 30 seconds and Bulb; flash sync 1/250 second; shutter tested to 300000 cycles1/8000 to 30 seconds, Bulb and Time; mechanical focal-plane shutter and electronic front-curtain in mirror-up mode. Flash sync 1/250 second; up to 1/320 with reduced guide number, and compatible Auto FP.
Burst detailApproximately 5 fps at full FX resolution or in 5:4; up to 7 fps in the 10.5-megapixel DX crop. Recording 14-bit NEF RAW reduces the maximum to 1.8 fps in FX/5:4 or 2.6 fps in DX. Maker rates require continuous-servo AF, shutter-priority or manual exposure, at least 1/250 second and other specified default settingsHigh-speed continuous approximately 8 fps with AF/AE tracking; low-speed 1–7 fps. Nikon states up to 50 lossless-compressed 14-bit RAW frames or 100 large Fine JPEGs under its published test conditions.
Stabilisation detailOptical VR depends on the attached lens; no sensor-shift stabilisationNo sensor-shift stabilisation; optical VR depends on the attached lens. Electronic movie VR for Full HD/HD, unavailable for UHD.
FlashNo built-in flash; hot shoe and PC sync terminal; compatible external Speedlights provide i-TTL and Creative Lighting System functionsBuilt-in pop-up flash, guide number approximately 12 at ISO 100 in metres and 20°C; i-TTL, optical commander support and ISO 518 hot shoe. Optional AS-15 provides a sync terminal.
Exposure controlsP/S/A/M; 1005-pixel RGB 3D Colour Matrix Metering II; ±5 EV compensation; Active D-LightingAuto, P/S/A/M, scenes, effects and U1/U2 settings; ±5 EV compensation; 180K-pixel RGB metering sensor
Screen and viewfinder
ViewfinderOpticalOptical
Screen size3″3.2″
Screen dots920,000922,000
Touchscreen–Yes
Tilting screenNoYes
Display detailFixed TFT with 170° viewing angle; dots count subpixels; separate top and rear status panelsTilting TFT, approximately 100% coverage and 170° viewing angle; eyepiece sensor can switch monitor off; dots count subpixels
Viewfinder detailPentaprism; approximately 100% FX coverage, 97% DX coverage and 100% vertical/97% horizontal in 5:4; 0.7× magnification with 50mm at infinity; 18 mm eyepoint; replaceable focusing screen and eyepiece shutterPentaprism, approximately 100% DX coverage or 97% in the 1.3× crop; 0.94× magnification with 50mm f/1.4 at infinity, 18.5 mm eyepoint and −2 to +1 dioptre adjustment
Connections and design
Wi-FiNoYes
Bluetooth–Yes
Battery life (maker's claim)4400 photographs950 photographs
Body weight1220 g640 g
Release detailNikon's original US announcement specifies December 2008 availability; Japan records 19 December. Main retains the monthAnnounced on 12 April 2017; Nikon Japan's release states June availability and its current overview confirms 9 June there. Main retains June without inferring an exact UK first-sale day.
Recording mediaTwo CompactFlash Type I/II slots, including UDMA and Microdrive support; overflow, backup, separate RAW/JPEG recording and card-to-card copyingSingle UHS-I SD/SDHC/SDXC card slot
PortsUSB 2.0 Hi-Speed, analogue NTSC/PAL output, full-size HDMI Type A, ten-pin accessory terminal and PC flash sync; optional GP-1 or MC-35 connects external GPS equipmentHi-Speed USB Micro-B, mini HDMI Type C, 3.5 mm microphone and headphone sockets, accessory terminal for MC-DC2 and compatible wireless remotes
Wireless connectionsOptional WT-4 transmitter supplies network transfer; Wi-Fi is not built into the bodyWi-Fi IEEE 802.11b/g and Bluetooth 4.1; SnapBridge; optional ML-L3 infrared remote
Battery life detailEN-EL4a; approximately 4400 shots under CIPA conditions with AF-S NIKKOR 24–70mm f/2.8G ED and no live view. Separate Nikon continuous test claims approximately 5300 with AF-S VR 70–200mm f/2.8 ED; EN-EL4 also supportedEN-EL15a/15b or EN-EL15; maker claim approximately 950 CIPA single-frame shots. EN-EL15c may be supplied.
ChargingExternal MH-22 charger; optional MH-21 charger and EH-6 AC adapterExternal MH-25a charger; optional EH-5c/EH-5b AC adapter and EP-5B power connector
DimensionsApproximately 159.5 × 157 × 87.5 mmApproximately 135.5 × 104 × 72.5 mm
Weight detailApproximately 1220 g excluding battery, card, body cap and accessory-shoe coverApproximately 640 g body only or 720 g including battery and SD card, excluding body cap
MaterialsMagnesium-alloy construction with dust and moisture seals; integrated vertical grip; not a waterproof ratingHigh-rigidity carbon-fibre composite monocoque body; weather sealing; maker operating range 0–40°C
In the box–EN-EL15-series battery, MH-25a charger, UC-E20 USB cable, AN-DC3 BK strap, BF-1B body cap, DK-5 eyepiece cap and DK-28 eyecup; battery revision may vary
Video
Highest video resolution–3840 × 2160 at 29.97 fps
Video detailNo movie recording. Handheld live view uses phase-detection AF; Tripod live view uses contrast-detection AFUHD 3840 × 2160 at 29.97/25/23.976p uses an approximately 16.2 × 9.1 mm movie crop regardless of still-image area; Full HD up to 59.94p, HD up to 59.94p. H.264 MOV/MP4, limit 29 minutes 59 seconds; simultaneous clean HDMI output and card recording; in-camera UHD/Full HD time-lapse.
AudioVoice memo recording and playback for still photographs; not movie audioBuilt-in stereo microphones, external 3.5 mm microphone input and headphone output; PCM or AAC depending on file format

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