Pentax K-3 II vs. Sony Alpha6400 ILCE-6400L + 16-50mm

Camera Comparison, Reviews and Tests

Detailed comparison and review of Pentax K-3 II and Sony Alpha6400 ILCE-6400L + 16-50mm. With our comprehensive overview, you can simply compare design, sensors, proximity characteristics, memory capacities, but also other key features of both cameras and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the camera that best fits your needs and expectations.

Camera Specifications Comparison

Pentax K-3 II vs. Sony Alpha6400 ILCE-6400L + 16-50mm Comparison Chart
DESIGN AND DIMENSIONS Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Product Type Digital camera - 1080p - SLR with Live View mode, movie recording Digital camera - 4K - mirrorless system
Lens Included Body only 16-50mm lens
Height 10.25 cm 6.69 cm
Width 13.15 cm 12 cm
Depth 7.75 cm 4.99 cm
Weight 700 g 359 g
Weight Details - Camera body only: 359 g
Camera with battery and memory card: 403 g
Body Material Stainless steel, magnesium alloy Magnesium alloy
Enclosure Colour Black Black
Protection Weatherproof, freezeproof, dust-resistant -
Digital Zoom - 4x
Optical Zoom - 3x
Navigation GPS receiver -
SENSOR Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Sensor Resolution 24.35 Megapixel 24.2 Megapixel
Optical Sensor Type CMOS Exmor CMOS
Total Pixels 24,710,000 pixels 25,000,000 pixels
Effective Sensor Resolution 24,350,000 pixels 24,200,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) APS-C (23.5 x 15.6 mm)
Frame Rate (Max Resolution) - 30 fps
Sensor Dust Reduction - Yes
Sensor Features Dust Reduction (image sensor vibration), anti-aliasing simulator function Dust Reduction (image sensor vibration), Anti-Dust coating
Image Stabiliser - Optical (Steady Shot)
Sensors Accelerometer, magnetometer, digital level metre -
PROCESSOR Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Image Processor - BIONZ X
LENS Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Type - Zoom lens - 3x zoom - 16 - 50 mm - f/3.5-5.6 PZ OSS - zoom
Focal Length Equivalent to 35mm Camera - 24 - 75mm
Focus Adjustment - Automatic, manual
Min Focus Distance - 25 cm
Max View Angle - 83 degree(s)
Zoom Adjustment - Manual (by ring), motorised drive
Lens Construction - 8 groups / 9 elements
Filter Size - 40.5 mm
Lens Mounting Type Pentax K Sony E-mount
Features - ED glass, aspherical lens, Lens Barrel Retraction Function
FOCUSING Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Auto Focus TTL contrast and phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 27 425
Auto Focus Features - Focus Peaking function, 4D FOCUS system
AE/AF Control - Eye detection AF, Predictive AI Servo AF, Real-time Eye AF, Real-time Tracking AF
Face Detection Yes Yes
VIEWFINDER Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Viewfinder Type Optical - fixed eye-level pentaprism Electronic - OLED
Viewfinder Colour Support - Colour
Viewfinder Diagonal Size - 0.39"
Viewfinder Resolution - 2,359,296 pixels
Optical Viewfinder Field Coverage 100% -
Optical Viewfinder Magnification 0.95x 1.07x
Optical Viewfinder Dioptric Correction Range -2.5 to +1.5 -
Field of View Crop Factor - 1.5
Interchangeable Focusing Screens Yes -
Features - Auto eye sensor
EXPOSURE & WHITE BALANCE Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
ISO (Max) 51200 102400
Native ISO 100-51200 100-32000
Extended ISO (Max) - 102400
Light Sensitivity ISO 100-51200, ISO auto (100-51200) ISO auto (100-6400), ISO 100-32000
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, spot
Exposure Metering Zones - 1200
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority
Bracketing Modes - Flash Exposure Bracketing, white balance bracketing
Shooting Programs - Landscape, portrait mode, macro, night portrait, night scene, sports mode, sunset, handheld twilight, anti-motion blur
Special Effects Soft, Slim, Pastel, fisheye, natural, bright, Vibrant, Sketch, monochrome, Muted, landscape, portrait, Water Colour, miniature, Cross Process, Retro, Colour Extract, Toy camera, starburst, High contrast, Colour Invert, Bleach Bypass, Posterisation, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold Black & White, Sepia, Neutral, Vivid, sunset, soft focus, illustration, landscape, portrait, Water Colour, miniature, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, HDR Painting, Rich-tone monochrome, Soft High-key, Night Scene, Standard, Style Box
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white) Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white)
Shutter Type Mechanical electronically-controlled Mechanical, electronic
Max Shutter Speed 1/8000 sec 1/4000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±5 EV range, in 1/2 or 1/3 EV steps ±5 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing 2, 3 or 5 steps 3, 5 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps, 9 steps in 1/3, 1/2, 2/3 or 1 EV steps
White Balance Bracketing - Yes
X-sync Speed 1/180 sec 1/160 sec
Exposure Range EV -3-20 (ISO 100) EV -2-20 (ISO 100)
DISPLAY Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Type 3.2" LCD display 3" LCD display
Touch Screen - Yes
Display Format 1,037,000 pixels 921,600 pixels
Display Form Factor Built-in Tilting
Display Features Colour control, contrast control, display brightness control Display brightness control, display colour control, display contrast control
FLASH Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Camera Flash - Pop-up flash
Guide Number (m / ISO 100) - 6
Flash Modes - Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction, high-speed sync
Red-Eye Reduction - Yes
Features - AF illuminator, flash +/- compensation, wireless off-camera control
VIDEOGRAPHY / CAMCORDER Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Digital Video Format AVI, MJPEG, H.264 AVCHD, XAVC S
Image Recording Format JPEG, DNG (RAW), PEF (RAW) JPEG, RAW, RAW + JPEG
Max Video Resolution 1920 x 1080 3840 x 2160
Surround Sound - Dolby Digital AC-3 (2 channel) recording
Microphone Operation Mode Mono Stereo
MEMORY Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Memory Card Slot Dual SD card Memory Stick PRO Duo card, SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card SD Memory Card, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, Memory Stick Micro Mark2, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card
Memory Card Included No No
Image Storage RAW 6016 x 4000
JPEG 6016 x 4000
JPEG 4608 x 3072
JPEG 3072 x 2048
JPEG 1920 x 1280
6000 x 4000
6000 x 3376
4240 x 2832
4240 x 2400
3008 x 2000
3008 x 1688
4000 x 4000
2832 x 2832
2000 x 2000
Video Capture 1920 x 1080
1280 x 720
XAVC S - 3840 x 2160 p - 30 fps - 100Mbps
XAVC S - 3840 x 2160 p - 25 fps - 100Mbps
XAVC S - 3840 x 2160 p - 24 fps - 100Mbps
XAVC S - 3840 x 2160 p - 30 fps - 60Mbps
XAVC S - 3840 x 2160 p - 25 fps - 60Mbps
XAVC S - 3840 x 2160 p - 24 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 120 fps - 100Mbps
XAVC S HD - 1920 x 1080 p - 100 fps - 100Mbps
XAVC S HD - 1920 x 1080 p - 120 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 100 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 60 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 50 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 30 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 25 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 24 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 60 fps - 25Mbps
XAVC S HD - 1920 x 1080 p - 50 fps - 25Mbps
XAVC S HD - 1920 x 1080 p - 30 fps - 16Mbps
XAVC S HD - 1920 x 1080 p - 25 fps - 16Mbps
AVCHD - 1920 x 1080 i - 60 fps - 24Mbps
AVCHD - 1920 x 1080 i - 50 fps - 24Mbps
AVCHD - 1920 x 1080 i - 60 fps - 17Mbps
AVCHD - 1920 x 1080 i - 50 fps - 17Mbps
BATTERY AND CHARGING Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Battery Type Pentax D-Li90 Lithium Ion Sony NP-FW50 Lithium Ion
Details Pentax D-Li90 Li-ion rechargeable battery (included) Sony NP-FW50 Li-ion rechargeable battery - 1080 mAh (included)
Battery Life Photo shooting - 720 shots
Playback - 6.2 hours
Photo shooting - 360 shots (EVF on)
Photo shooting - 410 shots (LCD Monitor on)
Video recording - 70 minutes (EVF on)
Video recording - 75 minutes (LCD Monitor on)
CONNECTIONS Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Interface Composite video/audio, HDMI, USB 3.0 HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1
Connectivity Features - Remote control via mobile devices, remote live view
Print Standard Exif Print support DPOF support, Exif Print support, PRINT Image Matching
Computer Connectivity - Mac, Windows
Flash Terminal Hot shoe, PC terminal Hot shoe
Connector Type USB 3.0
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
Remote control
USB 2.0
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
FEATURES Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Self-Timer Delay 2sec, 12sec 10 sec, 2sec, 5 sec
Continuous Shooting Speed 3 frames per second, 4.5 frames per second, 8.3 frames per second 8 frames per second, 3 frames per second, 6 frames per second, 11 frames per second
HDR Mode Auto HDR mode HDR Movie mode
Additional Features Audio recording, sharpness control, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, interval shooting mode, in-camera film editing, in-camera RAW processing, peripheral illumination correction, HDR image enhancement technology, Shade Correction, Eye-Fi Card Ready, High ISO NR, no anti-aliasing filter, Lens Distortion Correction, primary colour filter, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, Flucard Ready, anti-aliasing filter simulator, diffraction correction, Pixel Shift Resolution technology, colour fringe correction Built-in speaker, RGB primary colour filter, AE lock, AF lock, FE lock, Sweep Panorama technology, USB powered, Dynamic Range Optimizer, USB charging, peripheral illumination correction, Chromatic Aberration Compensation (CAC), Intelligent AUTO (iAUTO), High ISO NR, high-speed recording, Time-Lapse recording, Superior Auto mode, noise reduction over long exposures, Lens Distortion Correction, slow motion recording
OTHERS Pentax K-3 II Sony Alpha6400 ILCE-6400L + 16-50mm
Included Accessories Eyepiece cover, carrying strap, battery charger, body cap, eyecup, shoe cap, sync terminal cover Eyepiece cover, dust cap, body cap, lens cap, shoulder strap, shoe cap, micro-USB cable
Software Drivers & Utilities -
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C 0 °C
Other projects: