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Nikon D40x vs Nikon Z50II

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

Better figure, where one is clearly better

NikonD40xNikonZ50II
Overview
ReleasedMarch 2007November 2024
Image and sensor
Camera typeDSLRMirrorless
Sensor formatAPS-CAPS-C
Sensor typeCCDCMOS
Sensor dimensions23.6 × 15.8 mm23.5 × 15.7 mm
Effective resolution10.2 MP20.9 MP
Largest image3872 × 25925568 × 3712
RAW recordingYesYes
Standard ISO range100–1600100–51200
Sensor detailNikon DX primary-colour CCD with 10.2 million effective and 10.75 million total pixels; approximately 1.5× lens focal-length equivalent21.51 million total pixels; Japanese exact specification gives 20.88 million effective, rounded to 20.9 on Nikon UK. Image-dust-off reference data requires NX Studio.
Image formatsCompressed 12-bit NEF RAW, JPEG and simultaneous RAW plus Basic JPEG; maximum 3872 × 2592 pixels; Image Optimisation settings and in-camera retouching14-bit NEF RAW with lossless or high-efficiency compression; JPEG and HEIF; RAW plus JPEG or HEIF
ISO detailISO 100–1600 in whole stops; Hi 1 expands to ISO 3200 equivalentStandard still-image ISO 100–51200, expandable to equivalent ISO 204800; HLG starts at ISO 400. Movie ISO 100–25600, with N-Log-specific limits.
Image processor–EXPEED 7
Lens and shooting
Lens mountNikon F mountNikon Z mount
StabilisationOptical lens stabilisationOptical lens stabilisation
Maximum continuous burst3 fps30 fps
Lens detailAutofocus with AF-S and AF-I motor-equipped lenses; no body autofocus motor. Other compatible AF lenses require manual focusing; non-CPU lenses require manual exposure without metering; IX and F3AF lenses unsupportedNIKKOR Z FX and DX lenses; FX lenses have a DX field-of-view crop. F-mount NIKKOR lenses require an adapter and retain model-dependent restrictions.
AutofocusMulti-CAM 530 phase-detection module; three selectable autofocus areas; -1 to +19 EV at ISO 100 equivalent, 20°C; AF-S/AF-C/AF-A, single-area, dynamic-area and closest-subject-priority dynamic-area modes; AF-assist illuminatorHybrid phase/contrast detection; 209 single-point or 231 auto-area positions, nine subject types, 3D tracking and AF-A. Nikon's −9 EV sensitivity uses AF-S, ISO 100, an f/1.2 lens and 20°C.
ShutterElectronically controlled vertical-travel focal-plane shutter; 1/4000 to 30 seconds in one-third stops, Bulb and Time with optional ML-L3 remote; flash sync 1/200 secondMechanical, electronic front-curtain and electronic; 1/4000 to 30 seconds plus Bulb/Time, extendable to 900 seconds in manual mode. Flash sync up to 1/250 second with reduced guide number above 1/200; Auto FP supported.
Burst detailApproximately 3 fps; self-timer and optional ML-L3 delayed or immediate infrared remote releaseExtended continuous shooting approximately 11 fps, or 15 fps silent; ordinary high approximately 5.6 fps, rising to 9.7 fps silent without RAW. C15/C30 high-speed capture with pre-release capture reaches 30 fps for JPEGs, not RAW.
Stabilisation detailOptical VR depends on the attached lens; no sensor-shift stabilisation. The pictured original 18–55mm ED II kit lens has no VRNo sensor-shift stabilisation; optical stabilisation depends on a VR lens. Electronic video VR adds a crop.
FlashBuilt-in pop-up flash; guide number approximately 12 m at ISO 100, 20°C, or 13 at manual full output; accessory shoeManual pop-up flash, guide number approximately 7 at ISO 100 in metres; i-TTL and ISO 518 accessory shoe
Exposure controlsP/S/A/M, Auto and scene modes; 420-pixel RGB matrix, centre-weighted and spot metering; ±5 EV compensation in one-third stopsAuto, P/S/A/M and scene modes; ±5 EV still-image or ±3 EV movie compensation
Screen and viewfinder
ViewfinderOpticalElectronic
Screen size2.5″3.2″
Screen dots230,0001,040,000
TouchscreenNoYes
Tilting screenNoYes
Display detailFixed 2.5-inch low-temperature-polysilicon TFT with approximately 230000 dots; Classic, Graphic and Wallpaper shooting-information displays, contextual help and playback magnification; dots count subpixelsVari-angle TFT, approximately 100% coverage and 170° viewing angle; dots count subpixels
Viewfinder detailPentamirror; approximately 95% coverage, 0.80× magnification with 50mm f/1.4 at infinity and 18 mm eyepoint0.39-inch XGA OLED, approximately 2.36 million dots, 100% coverage, 1.02× magnification and 19.5 mm eyepoint; maker maximum brightness claim 1000 cd/m²
Connections and design
Wi-Fi–Yes
Bluetooth–Yes
Battery life (maker's claim)520 photographs250 photographs
Body weight495 g495 g
Release detailNikon Japan records first sale on 29 March 2007; Nikon USA announcement dated 5 March 2007 states US availability beginning AprilAnnounced in November 2024; Nikon US states availability in late November 2024. Month precision is retained because an exact first UK retail day is unconfirmed.
Recording mediaOne SD/SDHC card slot; MMC unsupportedSingle SD/SDHC/SDXC slot supporting UHS-II, in the battery compartment
PortsHi-Speed USB and NTSC/PAL video output; optional ML-L3 infrared remoteUSB-C SuperSpeed USB; Micro HDMI Type D; 3.5 mm microphone input and headphone output, the latter also supports MC-DC3 remote release
Wireless connections–Wi-Fi IEEE 802.11a/b/g/n/ac and Bluetooth 5.0; SnapBridge and Nikon Imaging Cloud
Battery life detailEN-EL9 rechargeable lithium-ion battery; Nikon's D40x manual (printed page 121) and original brochure specify approximately 520 CIPA photographs, corroborating the launch announcement. The manual tests single frames every 30 seconds with the 18–55mm ED II lens and flash every other shot. The current US product page lists 470 shots, conflicting with these exact-model documentsEN-EL25a; CIPA approximately 250 monitor shots with power saving enabled or 230 without; EVF 240 with power saving or 220 without. Tested with NIKKOR Z DX 16–50mm f/3.5–6.3 VR; movie battery-life claim 55 minutes. EN-EL25 compatibility gives shorter battery life; Photography Blog's 300-shot EN-EL25 narrative is not the current maker claim.
ChargingExternal MH-23 quick charger; optional EH-5 mains adapter with EP-5 power connectorUSB charging and power with compatible equipment; optional EH-8P adapter
DimensionsApproximately 126 × 94 × 64 mmApproximately 127 × 96.8 × 66.5 mm
Weight detailApproximately 495 g excluding battery, SD card and body capApproximately 495 g body only or 550 g including battery/card, excluding body cap
ColoursBlack–
In the boxEN-EL9 battery, MH-23 charger, UC-E4 USB cable, AN-DC1 strap, body cap, DK-5 eyepiece cap, DK-16 eyecup and PictureProject CD-ROMEN-EL25a battery, AN-DC29 strap, USB-C cable and BF-N1 body cap
Video
Highest video resolution–3840 × 2160 at 60 fps
Video detailNo movie recording or live-view composition; NTSC/PAL output is for playbackUHD 3840 × 2160 up to 60p, with additional crop at 50/60p; full-width DX UHD up to 30p is oversampled from 5.6K. Full HD up to 120p; H.265 8/10-bit and H.264, N-Log and HLG, waveform, timecode, tally lamp, Product Review mode and Full HD Hi-Res Zoom. Maker recording limit 125 minutes, subject to conditions; no internal RAW video listed.
Audio–Built-in stereo microphones; PCM 48 kHz/24-bit for MOV or AAC 48 kHz/16-bit for MP4; external microphone and headphone monitoring

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