Sony Alpha6600 ILCE-6600M + E 18-135mm OSS vs. Pentax K-3 Mark III

Camera Comparison, Reviews and Tests

In depth comparison and review of Sony Alpha6600 ILCE-6600M + E 18-135mm OSS and Pentax K-3 Mark III. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Sony Alpha6600 ILCE-6600M + E 18-135mm OSS vs. Pentax K-3 Mark III Comparison Chart
DESIGN AND DIMENSIONS Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Product Type Digital camera - 4K - mirrorless system Digital camera - 4K - SLR with Live View mode, movie recording
Lens Included E 18-135mm OSS lens Body only
Height 6.69 cm 10.35 cm
Width 12 cm 13.45 cm
Depth 6.93 cm 7.35 cm
Weight 418 g 735 g
Weight Details Camera body only: 418 g
Camera with battery and memory card: 503 g
Camera body only: 735 g
Camera with battery and memory card: 820 g
Body Material Magnesium alloy Magnesium alloy
Enclosure Colour Black Black | Silver
Protection Dust-resistant, moisture-resistant Weatherproof, dust-resistant
Digital Zoom 4x -
Optical Zoom 7.5x -
Navigation - GPS receiver
SENSOR Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Sensor Resolution 24.2 Megapixel 25.73 Megapixel
Optical Sensor Type Exmor CMOS CMOS
Total Pixels 25,000,000 pixels 26,780,000 pixels
Effective Sensor Resolution 24,200,000 pixels 25,730,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) APS-C (23.3 x 15.5 mm)
Frame Rate (Max Resolution) 30 fps 30 fps
Sensor Dust Reduction Yes -
Sensor Features Dust Reduction (image sensor vibration), Anti-Dust coating Dust Reduction (image sensor vibration), anti-aliasing simulator function
Image Stabiliser Optical (5-axis image sensor shift mechanism) Optical SR II (5-axis image sensor shift mechanism)
Built-in Optical Image Stabiliser Yes Yes
Sensors Digital level metre Digital level metre
PROCESSOR Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Image Processor BIONZ X -
LENS Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Type Zoom lens - 7.5x zoom - 18 - 135 mm - f/3.5-5.6 E OSS - zoom -
Focal Length Equivalent to 35mm Camera 27 - 202.5mm -
Focus Adjustment Automatic, manual -
Min Focus Distance 45 cm -
Max View Angle 76 degree(s) -
Zoom Adjustment Manual (by ring) -
Lens Construction 12 groups / 16 elements -
Filter Size 55 mm -
Lens Mounting Type Sony E-mount Pentax K
Features ED glass, aspherical lens, linear AF motor -
FOCUSING Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Auto Focus TTL contrast and phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 425 101
Auto Focus Features Focus Peaking function, Predictive Focus Control -
AE/AF Control - Auto-area AF, Zone AF, Expanded area AF
Face Detection Eye Detect AF, Face Detection AF/AE, Self Portrait Auto Shutter Yes
VIEWFINDER Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Viewfinder Type Electronic - OLED Optical - fixed eye-level pentaprism
Viewfinder Colour Support Colour -
Viewfinder Diagonal Size 0.39" -
Viewfinder Resolution 2,359,296 pixels -
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 1.07x 1.05x
Optical Viewfinder Dioptric Correction Range -4 to +3 -4 to +1
Field of View Crop Factor 1.5 -
Features Viewfinder brightness control, colour temperature control Auto eye sensor
EXPOSURE & WHITE BALANCE Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
ISO (Max) 102400 1600000
Native ISO 100-32000 -
Extended ISO (Max) 102400 -
Extended ISO (Min) 50 -
Light Sensitivity ISO 50, ISO 102400, ISO 51200, ISO 100-32000 ISO auto, ISO 100-1600000
Exposure Metering Multi-segment, centre-weighted, spot, average, highlight-weighted Multi-segment, centre-weighted, spot, highlight-weighted
Exposure Metering Zones 1200 -
Exposure Modes Programme, 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, Flash Exposure Bracketing, white balance bracketing Depth of field bracketing, motion bracketing
Shooting Programs Landscape, portrait mode, macro, night portrait, night scene, sports mode, sunset, handheld twilight, anti-motion blur -
Special Effects Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Rich-tone monochrome, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) 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 Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) 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 Mechanical electronically-controlled Electronic, mechanical electronically-controlled
Max Shutter Speed 1/4000 sec 1/8000 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 3, 5, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps -
White Balance Bracketing Yes -
X-sync Speed 1/160 sec 1/200sec
Exposure Range EV -2-20 (ISO 100) EV -3-20 (ISO 100)
DISPLAY Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Type 2.95" LCD display 3.2" LCD display
Touch Screen Yes Yes
Display Format 921,600 pixels 1,620,000 pixels
Display Form Factor Tilting Built-in
Display Features Display brightness control Colour control, contrast control, display brightness control, night vision LCD display
VIDEOGRAPHY / CAMCORDER Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Digital Video Format AVCHD, H.264, XAVC S H.264, MOV
Image Recording Format JPEG, RAW, RAW + JPEG JPEG, DNG (RAW), PEF (RAW)
Max Video Resolution 3840 x 2160 3840 x 2160
Audio Signal Format Dolby Digital AC-3 (2 channel), Linear PCM -
Microphone Operation Mode Stereo Stereo
Microphone Features - Wind noise reduction, sensitivity control
MEMORY Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Memory Card Slot Memory Stick PRO Duo card, SD card Dual SD card
Supported Memory Cards SD Memory Card, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, SDHC UHS-I 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
Image Storage 6000 x 4000
4240 x 2832
3008 x 2000
6000 x 3376
4240 x 2400
3008 x 1688
4000 x 4000
2832 x 2832
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 XAVC S - 3840 x 2160 p - 30 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 - 24 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 120 fps - 100Mbps
XAVC S HD - 1920 x 1080 p - 120 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 60 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 30 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 60 fps - 25Mbps
XAVC S HD - 1920 x 1080 p - 30 fps - 16Mbps
AVCHD - 1920 x 1080 i - 60 fps - 24Mbps
AVCHD - 1920 x 1080 i - 60 fps - 17Mbps
XAVC S - 3840 x 2160 p - 25 fps - 100Mbps
XAVC S - 3840 x 2160 p - 25 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 100 fps - 100Mbps
XAVC S HD - 1920 x 1080 p - 100 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 50 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 25 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 50 fps - 25Mbps
XAVC S HD - 1920 x 1080 p - 25 fps - 16Mbps
AVCHD - 1920 x 1080 i - 50 fps - 24Mbps
AVCHD - 1920 x 1080 i - 50 fps - 17Mbps
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 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Battery Type Sony NP-FZ100 Lithium Ion Pentax D-Li90 Lithium Ion
Details Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) Pentax D-Li90 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 720 shots (EVF on)
Photo shooting - 810 shots (LCD Monitor on)
Video recording - 2.33 shots (EVF on)
Video recording - 2.5 shots (LCD Monitor on)
Photo shooting - 800 shots
Playback - 250 minutes
CONNECTIONS Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Interface HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2
Connectivity Features Remote control via mobile devices, remote live view Remote control via mobile devices, remote live view, Wireless Image Transfer
Print Standard DPOF support, Exif Print support, PRINT Image Matching 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)
Microphone (mini-phone stereo 3.5 mm)
Remote control
Headphones
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 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Self-Timer Delay 10 sec, 2sec, 5 sec 2sec, 12sec
Continuous Shooting Speed 8 frames per second, 3 frames per second, 6 frames per second, 11 frames per second 2.5 frames per second, 12 frames per second, 7 frames per second
HDR Mode Auto HDR mode Auto HDR mode
Additional Features Built-in speaker, sharpness control, histogram display, saturation control, shadow point display, interval shooting mode, highlight point display, contrast control, Dynamic Range Optimizer, built-in help guide, Dolby Digital Stereo Creator, Chromatic Aberration Compensation (CAC), Multi-Frame Noise Reduction, Intelligent AUTO (iAUTO), Touch Shutter technology, fast motion recording, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, silent shooting, High Dynamic Range (HDR), S-Log2 gamma setting, slow motion recording, peripheral shading correction, Object Tracking, S-Log3 gamma setting 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 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Pentax K-3 Mark III
Included Accessories Eyepiece cover, lens hood, dust cap, body cap, lens cap, shoulder strap, AC power adaptor, micro-USB cable, hot shoe cap 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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