Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II vs. Pentax K-3 Mark III

Camera Comparison, Reviews and Tests

Side by side comparison and review of Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II and Pentax K-3 Mark III. Compare design, sensors, zoom functions, batteries and other key specifications and features to simplify the choice of your perfect digital camera. Our goal is to make it easier for you to decide on the camera that will best meet your expectations by revealing the main differences between the products.

Camera Specifications Comparison

Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II vs. Pentax K-3 Mark III Comparison Chart
DESIGN AND DIMENSIONS Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Product Type Digital camera - 1080p - mirrorless system Digital camera - 4K - SLR with Live View mode, movie recording
Lens Included Fujinon 16-50mm OIS II lens Body only
Height 6.69 cm 10.35 cm
Width 11.69 cm 13.45 cm
Depth 4.04 cm 7.35 cm
Weight 290 g 735 g
Weight Details Camera body only: 290 g
Camera with battery and memory card: 339 g
Camera body only: 735 g
Camera with battery and memory card: 820 g
Body Material - Magnesium alloy
Enclosure Colour Brown Black | Silver
Protection - Weatherproof, dust-resistant
Optical Zoom 3x -
Navigation - GPS receiver
SENSOR Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Sensor Resolution 24.2 Megapixel 25.73 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels - 26,780,000 pixels
Effective Sensor Resolution 24,200,000 pixels 25,730,000 pixels
Optical Sensor Size APS-C (23.6 x 15.7 mm) APS-C (23.3 x 15.5 mm)
Frame Rate (Max Resolution) 60 fps 30 fps
Sensor Dust Reduction Yes -
Sensor Features Dust Reduction (image sensor vibration) Dust Reduction (image sensor vibration), anti-aliasing simulator function
Image Stabiliser Optical Optical SR II (5-axis image sensor shift mechanism)
Built-in Optical Image Stabiliser - Yes
Sensors - Digital level metre
LENS Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Type Fujinon zoom lens - 3x zoom - 16 - 50 mm - f/3.5-5.6 XC OIS II -
Focal Length Equivalent to 35mm Camera 24 - 76mm -
Focus Adjustment Automatic, manual -
Min Focus Distance 60 cm -
Macro Focus Range 15cm -
Max View Angle 83.2 degree(s) -
Zoom Adjustment Manual -
Lens Construction 10 groups / 12 elements -
Filter Size 58 mm -
Lens Mounting Type Fujifilm X Mount Pentax K
Features ED glass, aspherical lens -
FOCUSING Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Auto Focus TTL contrast detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 77 101
Auto Focus Features Focus Peaking function -
AE/AF Control Subject-tracking AF, Zone AF Auto-area AF, Zone AF, Expanded area AF
Face Detection Eye Detect AF Yes
VIEWFINDER Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Viewfinder Type - Optical - fixed eye-level pentaprism
Optical Viewfinder Field Coverage - 100%
Optical Viewfinder Magnification - 1.05x
Optical Viewfinder Dioptric Correction Range - -4 to +1
Features - Auto eye sensor
EXPOSURE & WHITE BALANCE Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
ISO (Max) 25600 1600000
Light Sensitivity ISO 100, ISO auto, ISO 200-6400, ISO 12800, ISO 25600 ISO auto, ISO 100-1600000
Exposure Metering Multi-segment, spot, average Multi-segment, centre-weighted, spot, highlight-weighted
Exposure Metering Zones 256 -
Exposure Modes Bulb, automatic, manual, aperture-priority, shutter-priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority
Bracketing Modes Dynamic Range Bracketing, Film Simulation Bracketing, ISO sensitivity bracketing, white balance bracketing Depth of field bracketing, motion bracketing
Shooting Programs Landscape, night mode, scene, sports mode, portrait enhancer -
Special Effects Sepia, Black & White Red filter, Black & White Yellow filter, fisheye, soft focus, monochrome, Black & White Green filter, miniature, Film Simulation, partial colour, Toy camera, High Key, Low Key, Pop Colour, Cross Screen, Dynamic tone Soft, Slim, fisheye, natural, bright, Vibrant, monochrome, Muted, Flat, landscape, portrait, miniature, Cross Process, Retro, Colour Extract, Toy camera, High contrast, Colour Invert, Bleach Bypass, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold, Colour replace, Grainy Monochrome
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Fine, incandescent, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater Cloudy, tungsten light, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white)
Shutter Type - Electronic, mechanical electronically-controlled
Max Shutter Speed 1/32000 sec 1/8000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±3 EV range, in 1/3 EV steps ±5 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing 3 steps in 1/3, 2/3 or 1 EV steps -
White Balance Bracketing Yes -
X-sync Speed 1/180 sec 1/200sec
Exposure Range - EV -3-20 (ISO 100)
DISPLAY Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Type 3" LCD display 3.2" LCD display
Touch Screen - Yes
Display Format 1,040,000 pixels 1,620,000 pixels
Display Form Factor Folding Built-in
Display Features Colour control, display brightness control Colour control, contrast control, display brightness control, night vision LCD display
FLASH Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Camera Flash Pop-up flash -
Guide Number (m / ISO 100) 5 -
Flash Modes Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction -
Red-Eye Reduction Yes -
Features AF illuminator -
VIDEOGRAPHY / CAMCORDER Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Digital Video Format H.264, MOV H.264, MOV
Image Recording Format JPEG, RAW, RAW + JPEG JPEG, DNG (RAW), PEF (RAW)
Max Video Resolution 1920 x 1080 3840 x 2160
Microphone Operation Mode Stereo Stereo
Microphone Features - Wind noise reduction, sensitivity control
MEMORY Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Memory Card Slot SD card Dual SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDXC UHS-I Memory Card SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card
Memory Card Included No No
Memory Card Max Supported Size 256 GB -
Image Storage 6000 x 4000
6000 x 3376
4000 x 4000
4240 x 2832
4240 x 2384
2832 x 2832
3008 x 2000
3008 x 1688
2000 x 2000
RAW 6192 x 4128
JPEG 6192 x 4128
JPEG 4752 x 3168
JPEG 3648 x 2432
JPEG 1920 x 1280
Video Capture H.264 - 1920 x 1080 p - 60 fps
H.264 - 1920 x 1080 p - 50 fps
H.264 - 1920 x 1080 p - 24 fps
H.264 - 1280 x 720 p - 60 fps
H.264 - 1280 x 720 p - 50 fps
H.264 - 1280 x 720 p - 24 fps
H.264 - 3840 x 2160 p - 30 fps
H.264 - 3840 x 2160 p - 24 fps
H.264 - 1920 x 1080 p - 60 fps
H.264 - 1920 x 1080 p - 30 fps
H.264 - 1920 x 1080 p - 24 fps
BATTERY AND CHARGING Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Battery Type Fujifilm NP-W126S Lithium Ion Pentax D-Li90 Lithium Ion
Details Fujifilm NP-W126S Li-ion rechargeable battery (included) Pentax D-Li90 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 410 shots (with XF 35mm lens) Photo shooting - 800 shots
Playback - 250 minutes
CONNECTIONS Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Interface HDMI, USB 2.0, IEEE 802.11b/g/n HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2
Connectivity Features Wireless Image Transfer Remote control via mobile devices, remote live view, Wireless Image Transfer
Print Standard Direct print, Exif Print support, PictBridge support Exif Print support
Computer Connectivity - Mac, Windows
Flash Terminal Hot shoe Hot shoe, PC terminal
Connector Type USB 2.0 (5 pin Micro-USB Type B)
HDMI output (19 pin micro HDMI Type D)
USB 3.2 Gen 1 (USB Type-C)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
Remote control (sub-mini phone 2.5 mm)
FEATURES Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Self-Timer Delay 10 sec, 2sec 2sec, 12sec
Continuous Shooting Speed 3 frames per second, 6 frames per second 2.5 frames per second, 12 frames per second, 7 frames per second
HDR Mode - Auto HDR mode
Additional Features Depth-of-field preview button, sharpness control, digital image rotation, camera orientation detection, histogram display, colour control, in-camera red-eye removal, cropping an image, resizing an image, interval shooting mode, Dynamic Range Adjustment, in-camera RAW processing, Motion Panorama, Advanced SR AUTO mode, Photobook assist Audio recording, date/time stamp, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, interval shooting mode, in-camera film editing, in-camera RAW processing, peripheral illumination correction, horizon correction, NR Slow Shutter, High ISO NR, Lens Distortion Correction, primary colour filter, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, diffraction correction, Pixel Shift Resolution technology, colour fringe correction, multiple exposure capture, GPS stamp, D-range correction
OTHERS Fujifilm X Series X-A3 + Fujinon 16-50mm OIS II Pentax K-3 Mark III
Included Accessories Dust cap, body cap, lens cap, shoulder strap, AC power adaptor, USB cable, power plug adapter Eyepiece cover, carrying strap, battery charger, body cap, USB cable, eyecup, shoe cap, sync terminal cover
Software - Digital Camera Utility 5
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C -10 °C
Service & Support - Limited warranty - 1 year
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