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Panasonic LUMIX G9II vs PENTAX K-3 Mark III Monochrome

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

Better figure, where one is clearly better

PanasonicLUMIX G9IIPENTAXK-3 Mark III Monochrome
Overview
ReleasedNovember 2023April 2023
Image and sensor
Camera typeMirrorlessDSLR
Sensor formatFour ThirdsAPS-C
Sensor typeLive MOSMonochrome CMOS without colour or optical low-pass filters
Sensor dimensions17.3 × 13 mm23.3 × 15.5 mm
Effective resolution25.21 MP25.73 MP
Largest image5776 × 43366192 × 4128
RAW recordingYesYes
Standard ISO range100–25600200–1600000
Sensor detailMaker Japan specifies 25.21 million effective and 26.52 million total pixels, marketed as 25.2 MP; 17.3 × 13 mm Live MOS. Native 4:3 stills 5776×4336; high-resolution composites 11552×8672 are separate from native resolution25.73 effective and 26.78 total megapixels; monochrome CMOS records brightness at each pixel without a colour filter array or demosaicing
Image formatsJPEG and RAW; Fine/Standard JPEG and RAW+JPEG options14-bit PEF or DNG RAW, JPEG and simultaneous RAW/JPEG; monochrome-only Standard, Hard and Soft image profiles
ISO detailStandard stills ISO 100–25600; expanded ISO 50; video and V-Log have different ranges. Maker Japan states no Dual Native ISOMaker standard range ISO 200–1600000; no separate expanded range stated
Lens and shooting
Lens mountMicro Four ThirdsPENTAX KAF2 bayonet mount
StabilisationLens and sensor shiftSensor shift
Maximum continuous burst75 fps12 fps
Lens detail–KAF4, KAF3, KAF2 including power zoom, KAF and KA lens compatibility; native KAF2 bayonet includes autofocus coupler, information and power contacts
AutofocusPhase Hybrid AF; current Japan table recognises humans, animals, cars, motorcycles, trains and aircraft. The last two extend the launch-era review descriptions and are not assumed launch featuresSAFOX 13 through-viewfinder phase detection, 101 points including 25 cross-type; EV −3 to 19 at ISO 200, with −3 limited to f/2.8-flux-compatible points and lens. Contrast-detection live view with face detection, touch AF and focus peaking
ShutterMechanical 60–1/8000 second and Bulb to approximately 30 minutes; electronic first curtain 60–1/2000; electronic 60–1/32000 with Bulb to approximately 60 secondsMechanical focal-plane shutter 1/8000–30 seconds and Bulb; electronic shutter up to 1/16000 second; timed Bulb 1 second–20 minutes
Burst detailFull-resolution electronic 75 fps AFS/MF with focus fixed; 60 or 20 fps AFS/AFC/MF. SH RAW/JPEG buffer 200 frames; mechanical 14 fps AFS/MF or 10 fps AFC, electronic first curtain 14/9 respectively. Normal RAW buffer at least 170 frames under maker conditions; pre-burst available, with heat-related restrictionsUp to 12 fps with approximately 55 JPEGs, 32 RAW or 30 RAW/JPEG pairs at ISO 200; speed and buffer depend on lens, aperture, shutter, sensitivity and card. AP measured lower speeds with a pre-production sample
Stabilisation detailMaker UK eight-stop B.I.S. with H-ES12060 at 60 mm, and 7.5-stop Dual I.S.2 with H-FSA14140 at 140 mm, under CIPA yaw/pitch conditions; electronic video stabilisation is separateFive-axis sensor-shift SR II with Auto, Panning and Off modes; anti-aliasing simulator and horizon/composition adjustment. Astrotracer Types 1/2 require an optional O-GPS unit; Type 3 also listed by maker
FlashNo built-in flash; external flash support and sync up to 1/250 secondExternal flash hot shoe and X-sync socket, 1/200-second sync
Exposure controls–PASM, sensitivity priority, combined shutter/aperture priority and five saved user modes; ±5 EV compensation; 307,000-pixel RGBIr metering sensor
Video
Highest video resolution5760 × 4320 at 29.97 fps3840 × 2160 at 30 fps
Video detailInternal 5760×4320 4:3 open-gate HEVC 4:2:0 10-bit up to 29.97p; 5728×3024 17:9 up to 59.94p; C4K up to 119.88p and Full HD up to 239.76p. ProRes 422/HQ supported through USB SSD with recording-mode/media restrictions; no ProRes RAW inferred from GH7. Maker V-Log claim 13+ stops, dropping to 12+ above 60 fps; Dynamic Range Boost excludes SH bursts and specified slow-shutter combinations. No built-in cooling fan (Amateur Photographer)Monochrome H.264 MOV; UHD 3840×2160 at 30/24p, Full HD 1920×1080 at 60/30/24p. Maker limit 25 minutes or 4 GB, with temperature-dependent shutdown. No 120p mode inferred from the AP table
AudioStereo built-in microphone; high-resolution audio through compatible DMW-XLR1/DMW-XLR2; exact channel and format restrictions depend on recording modeBuilt-in stereo microphone; external stereo microphone input, headphone terminal, recording-level adjustment and wind-noise reduction
Screen and viewfinder
ViewfinderElectronicOptical
Screen size3″3.2″
Screen dots1,840,0001,620,000
TouchscreenYesYes
Tilting screenYesNo
Display detailThree-inch 3:2 capacitive touchscreen, approximately 1.84 million dots; free-angle articulation (Panasonic UK), distinct from GH7's additional tilt frameFixed 3.2-inch capacitive touchscreen, approximately 1.62 million dots; outdoor-view adjustment and night-vision display
Viewfinder detail0.5-inch OLED, approximately 3.68 million dots, 100% coverage; approximately 1.6× magnification, 0.8× in 35 mm terms under maker's 50 mm-equivalent/infinity/−1 dioptre/4:3 conditionsOptical pentaprism, approximately 100% coverage and 1.05× magnification with FA 50mm F1.4 at infinity; 20.5 mm eye relief from view window. AP's approximately 0.7× figure is equivalent magnification
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)370 photographs800 photographs
Body weight575 g735 g
Release detailMaker UK confirms November 2023 availability; September 2023 is the announcement, not substituted for first saleMaker Japan notice confirms 28 April 2023 local sale; earliest worldwide and UK 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 SD/SDHC/SDXC UHS-II slots including V90; dual-slot recording options; supported video can record to USB SSDTwo SD/SDHC/SDXC slots; slot 1 supports UHS-II, slot 2 UHS-I. Sequential, duplicate or separate RAW/JPEG recording
PortsUSB-C 10 Gbps; full-size HDMI, 3.5 mm microphone/headphone and 2.5 mm remote sockets (Amateur Photographer)USB-C USB 3.2 Gen 1, Type D micro-HDMI, microphone and headphone terminals, 2.5 mm cable-switch terminal and X-sync socket
Wireless connectionsWi-Fi 2.4 GHz 802.11b/g/n and 5 GHz 802.11a/n/ac; Bluetooth Low Energy 5.0; Japan channel ranges not assumed identical globallyIEEE 802.11b/g/n Wi-Fi at 2.4 GHz and Bluetooth 4.2 Low Energy
Battery life detailDMW-BLK22; current Japan CIPA 370 LCD/EVF shots with H-ES12060 and SD, or approximately 1300 in specified one-second power-save EVF mode. USB SSD approximately 310 shots. Older review claims of 390 shots are not substituted for the current maker tableD-LI90 lithium-ion battery; approximately 800 shots CIPA or 250 minutes playback
ChargingUSB in-camera charging; Japan table approximately 220 minutes with bundled USB AC adapter or 170 minutes with DMW-BTC15 adapter; optional DMW-BTC15 charger approximately 175 minutesUSB-C in-camera charging; USB power adapter supplied, optional AC adapter required for the maker's external power-supply arrangement
DimensionsApproximately 134.3 × 102.3 × 90.1 mm, excluding protrusionsApproximately 134.5 × 103.5 × 73.5 mm, excluding protrusions
Weight detailMaker UK 575 g body only, 658 g with battery and SD card; lens excludedApproximately 735 g body only; 820 g with battery and SD card
MaterialsDust/splash-resistant body (Panasonic UK); no waterproof rating inferredDust and weather resistant magnesium-alloy construction described in Amateur Photographer's pre-production test; maker operating temperature −10 to 40°C
Colours–Black with grey markings and silver SR badge; Matte Black Edition is a cosmetic finish, not another generation
In the boxJapan maker lists body cap, hot-shoe cover, battery-grip connector cover, shoulder strap, battery, USB AC adapter and USB A–C cable; regional contents may varyD-LI90 battery, USB power adapter and plug, I-USB166 cable, strap, eyecup, viewfinder/body/hot-shoe/connector covers and strap rings; Digital Camera Utility 5 installer in camera, regional contents may vary

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