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Canon EOS-1D X Mark III vs PENTAX K-1 Mark II

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

Better figure, where one is clearly better

CanonEOS-1D X Mark IIIPENTAXK-1 Mark II
Overview
ReleasedFebruary 2020April 2018
Image and sensor
Camera typeDSLRDSLR
Sensor formatFull frameFull frame
Sensor typeCMOSCMOS without an optical low-pass filter
Sensor dimensions35.9 × 23.9 mm35.9 × 24 mm
Effective resolution20.1 MP36.4 MP
Largest image5472 × 36487360 × 4912
RAW recordingYesYes
Standard ISO range100–102400100–819200
Sensor detailApproximately 20.1 million effective pixels on a 35.9 × 23.9 mm full-frame CMOS sensor; automatic/manual cleaning and Dust Delete Data36.4 effective megapixels, 36.77 total; no optical low-pass filter. Sensor-shift anti-aliasing simulator offers moiré reduction
Image formats14-bit RAW/C-RAW, 8-bit JPEG and 10-bit HEIF HDR PQ; electronic shutter uses 12-bit RAW conversion; simultaneous RAW and JPEG or HEIF available14-bit PEF or DNG RAW, JPEG and simultaneous RAW/JPEG; full-frame and APS-C crop. Tripod pixel shift combines four sensor-shifted exposures; Dynamic handheld mode aligns four shots without eliminating Bayer interpolation
ISO detailStandard still-photo ISO 100–102400, expandable to ISO 50, 204800, 409600 or 819200; movie ISO range depends on recording modeMaker standard sensitivity ISO 100–819200; no separate expanded range listed
Image processorDIGIC XPRIME IV with an accelerator unit
Lens and shooting
Lens mountCanon EFPENTAX KAF2 bayonet mount
Stabilisation–Sensor shift
Maximum continuous burst20 fps6.4 fps
Lens detailCanon EF lenses; EF-S and EF-M incompatible; official photo shows an attached EF 24-70mm F2.8L II USM whose figures are separate from the bodyKAF4, KAF3, KAF2 including power zoom, KAF and KA lenses; native KAF2 bayonet with autofocus coupler, information and power contacts
AutofocusOptical-viewfinder phase-detection AF with up to 191 points and 155 cross-type points depending on lens, with face/head recognition; live-view Dual Pixel CMOS AF with up to 3869 selectable positions, 525 automatic areas and eye detection; area coverage depends on lensSAFOX 12 phase detection through viewfinder, 33 points including 25 central cross-type points, EV −3 to 18 at ISO 100; contrast detection in live view
ShutterMechanical and electronic first curtain 30–1/8000 second plus Bulb; live-view electronic 0.5–1/8000 second; maximum flash sync 1/250 secondMechanical focal-plane shutter 1/8000–30 seconds, Bulb and optional timed Bulb 10 seconds–20 minutes; electronic shutter available in live view and tripod pixel shift
Burst detailUp to 16 fps through the optical viewfinder or 20 fps in live view, with AF/AE tracking; live-view mechanical or electronic shutter supported; maker buffer claim at least 1000 JPEG, HEIF, RAW or RAW+JPEG frames in viewfinder shooting using a specified 325 GB test card; approximately 350 RAW+HEIF; lens, lighting, power, temperature and settings affect performanceMaximum 4.4 fps at full-frame resolution with up to 70 JPEGs or 17 RAW files; 6.4 fps in 15-megapixel APS-C crop with up to 100 JPEGs or 50 RAW files, at ISO 100
Stabilisation detailMovie Digital IS available; this is electronic movie stabilisation rather than sensor-shift IBISFive-axis sensor-shift SR II; maker claims five shutter-speed steps. Built-in GPS supports Astrotracer; horizon and composition adjustment use the sensor-shift mechanism
FlashExternal EL/EX Speedlite E-TTL II support; PC sync terminal and flash controlsHot shoe and X-sync socket for external flash, sync 1/200 second
Exposure controlsP, Tv, Av, M, Bulb and three custom modes; viewfinder 216-zone metering with approximately 400000-pixel RGB+IR sensor; live-view/movie 384-zone image-sensor metering; compensation up to ±5 EV through viewfinder or ±3 EV in live view/moviesPASM, sensitivity priority and combined shutter/aperture priority; ±5 EV exposure compensation and 86,000-pixel RGB metering sensor
Video
Highest video resolution5472 × 2886 at 59.94 fps1920 × 1080 at 30 fps
Video detailInternal 12-bit RAW 5472 × 2886 up to 59.94/50 fps; DCI 4096 × 2160 and UHD 3840 × 2160 up to 59.94/50 fps; Full HD up to 119.9/100 fps; H.264 8-bit 4:2:0 or H.265 10-bit 4:2:2 with Canon Log; main RAW 59.94p maker bitrate approximately 2600 Mbps; 4K HDMI output supported; DPReview notes autofocus requires cropped 4K or lower frame rates in full-width recordingFull HD 1920×1080 at 30/25/24 progressive frames or 60i/50i fields; 1280×720 at 60/50p. H.264 MOV, up to 25 minutes or 4 GB. 4K is interval-movie output only, not continuous video
AudioBuilt-in monaural microphone; stereo external microphone/line input and headphone sockets; adjustable levels, wind filter and attenuatorBuilt-in stereo microphone, external stereo mic input and headphone monitoring; adjustable recording level and wind-noise reduction
Screen and viewfinder
ViewfinderOpticalOptical
Screen size3.15″3.2″
Screen dots2,100,0001,037,000
TouchscreenYesNo
Tilting screenNoYes
Display detailFixed capacitive touchscreen; maker manual specifies 8.01 cm (3.15 inches), approximately 2.1 million dots; commonly marketed rounded as 3.2 inches3.2-inch flexible-tilt LCD, approximately 1.037 million dots; outdoor-view and red night-vision settings. No touchscreen, as DPReview confirms
Viewfinder detailOptical eye-level pentaprism with approximately 100% coverage and 0.76× magnification with a 50 mm lens at infinity; built-in eyepiece shutterOptical pentaprism, approximately 100% coverage and 0.70× magnification with FA 50mm F1.4 focused at infinity; eye relief 20.6 mm from view window
Connections and design
Wi-FiYesYes
BluetoothYes–
Battery life (maker's claim)2850 photographs670 photographs
Body weight1250 g925 g
Release detailCanon Camera Museum records first marketing in February 2020; no exact first-sale day inferredPentax Europe's current product table confirms April 2018 market launch; original Japanese launch notice stated late April. Earliest worldwide retail day unconfirmed, so month precision retained. Later Ricoh notice announces ending current K-series production; surviving range pages do not prove ongoing production
Recording mediaTwo CFexpress Type B memory-card slots; still/movie separation and recording/backup optionsTwo UHS-I SD/SDHC/SDXC slots; sequential, duplicate or separate RAW/JPEG recording
PortsUSB-C SuperSpeed Plus USB 3.1 Gen 2, mini HDMI Type C, microphone/line input, headphone socket, N3 remote terminal, RJ45 Ethernet, WFT-E9 extension connector and PC flash syncMicro-B USB 2.0, Type D micro-HDMI, microphone and headphone sockets, external power, cable switch and X-sync terminals
Wireless connectionsWi-Fi 802.11b/g/n at 2.4 GHz and Bluetooth Low Energy 4.2; wired Ethernet 10/100/1000BASE-T; GPS, GLONASS and QZSS geotaggingIEEE 802.11b/g/n Wi-Fi at 2.4 GHz; built-in GPS, QZSS/SBAS reception and electronic compass
Battery life detailLP-E19; maker approximately 2850 viewfinder or 610 live-view photographs at 23°C with a fully charged battery; approximately 2360/530 respectively at 0°C, based on Canon/CIPA testingD-LI90P rechargeable lithium-ion battery; approximately 670 shots under CIPA conditions, or 340 minutes playback
Charging–Included D-BC90 external battery charger; optional K-AC167 AC adapter kit
DimensionsApproximately 158.0 × 167.6 × 82.6 mm (width × height × depth)Approximately 136.5 × 110 × 85.5 mm, excluding protrusions
Weight detailApproximately 1250 g body only or 1440 g including battery and card; attached lens in official image is excludedApproximately 925 g body only; 1010 g including battery and SD card
Materials–Magnesium-alloy exterior and maker −10°C operating limit; weather resistance is not a waterproof rating
Colours–Standard black body; limited cosmetic editions not separate generations
In the box–D-LI90P battery, D-BC90 charger and AC cord, strap, viewfinder cap, eyecup, body cap, hot-shoe and connector covers, strap rings and Digital Camera Utility 5 CD-ROM

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