In depth comparison and review of Pentax K-3 and Sony Alpha6100 ILCE-6100. 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.
DESIGN AND DIMENSIONS | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Product Type | Digital camera - SLR with movie recording | Digital camera - 4K - mirrorless system |
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Lens Included | Body only | Body only |
Height | 10 cm | 6.69 cm |
Width | 13.15 cm | 12 cm |
Depth | 7.75 cm | 5.94 cm |
Weight | 715 g | 352 g |
Weight Details | - | Camera body only: 352 g Camera with battery and memory card: 396 g |
Body Material | Magnesium alloy | - |
Enclosure Colour | Black | Black |
Protection | Weatherproof, freezeproof, dust-resistant | - |
Digital Zoom | - | 4x |
SENSOR | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Sensor Resolution | 23.35 Megapixel | 24.2 Megapixel |
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Optical Sensor Type | CMOS | Exmor CMOS |
Total Pixels | 24,710,000 pixels | 25,000,000 pixels |
Effective Sensor Resolution | 23,350,000 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 Features | Dust Reduction (image sensor vibration), anti-aliasing simulator function | - |
Image Stabiliser | Optical (image sensor shift mechanism) | - |
Built-in Optical Image Stabiliser | Yes | - |
Sensors | Dust alert sensor, digital level metre | - |
PROCESSOR | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Image Processor | PRIME III | BIONZ X |
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LENS | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Lens Mounting Type | Pentax K | Sony E-mount |
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FOCUSING | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Auto Focus | TTL phase detection | TTL contrast and phase detection |
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Auto Focus Points (Zones) Qty | 27 | 425 |
Auto Focus Features | - | Focus Peaking function, Predictive Focus Control |
Face Detection | Yes | Eye Detect AF, Face Detection AF/AE, Smile Shutter, Self Portrait Auto Shutter |
VIEWFINDER | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Viewfinder Type | Optical - fixed eye-level pentaprism | Electronic - OLED |
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Viewfinder Colour Support | - | Colour |
Viewfinder Diagonal Size | - | 0.39" |
Viewfinder Resolution | - | 1,440,000 pixels |
Optical Viewfinder Field Coverage | 100% | 100% |
Optical Viewfinder Magnification | 0.95x | 1.07x |
Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -4 to +3 |
Field of View Crop Factor | - | 1.5 |
Interchangeable Focusing Screens | Yes | - |
Features | - | Viewfinder brightness control, colour temperature control |
EXPOSURE & WHITE BALANCE | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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ISO (Max) | 51200 | 51200 |
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Native ISO | 100-51200 | 100-32000 |
Extended ISO (Max) | - | 51200 |
Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 51200, 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 | - | Dynamic Range Bracketing, 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, Vivid, sunset, soft focus, illustration, landscape, portrait, Water Colour, miniature, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, HDR Painting, Rich-tone monochrome, Soft High-key, Posterisation (B/W) |
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 electronically-controlled |
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 | Sony Alpha6100 ILCE-6100 |
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Type | 3.2" LCD display | 2.95" LCD display |
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Touch Screen | - | Yes |
Display Format | 1,037,000 pixels | 921,600 pixels |
Display Form Factor | Built-in | Tilting |
Display Features | Colour control | Display brightness control |
FLASH | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Camera Flash | Pop-up flash | Pop-up flash |
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Guide Number (m / ISO 100) | 13 | 6 |
Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | Fill-in mode, rear curtain sync, auto mode, flash OFF mode, red-eye reduction, slow sync |
Red-Eye Reduction | Yes | - |
Features | AF illuminator, flash +/- compensation, wireless off-camera control | AF illuminator, flash +/- compensation, wireless off-camera control, flash exposure bracketing, high-speed synchronization (HSS) |
VIDEOGRAPHY / CAMCORDER | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Digital Video Format | AVI, MJPEG, H.264 | AVCHD, H.264, XAVC S |
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Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW, RAW + JPEG |
Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
Audio Signal Format | - | Dolby Digital AC-3 (2 channel), Linear PCM |
Microphone Operation Mode | Mono | Stereo |
Microphone Features | Sensitivity control | - |
MEMORY | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Memory Card Slot | Dual SD card | Memory Stick PRO Duo card, SD card |
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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, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card |
Memory Card Included | - | 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 4240 x 2832 3008 x 2000 6000 x 3376 4240 x 2400 3008 x 1688 4000 x 4000 2832 x 2832 2000 x 2000 |
Video Capture | H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps H.264 - 1280 x 720 - 60 fps H.264 - 1280 x 720 - 50 fps H.264 - 1280 x 720 - 30 fps H.264 - 1280 x 720 - 25 fps H.264 - 1280 x 720 - 24 fps H.264 - 1920 x 1080 - 60 fps H.264 - 1920 x 1080 - 50 fps |
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 - 24 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 |
BATTERY AND CHARGING | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Battery Type | Pentax D-Li90 Lithium Ion | Sony NP-FW50 Lithium Ion |
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Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Sony NP-FW50 Li-ion rechargeable battery - 1080 mAh (included) |
Battery Life | Photo shooting - 560 shots (50% flash usage) Photo shooting - 720 shots (flash off) Playback - 6.2 hours |
Photo shooting - 380 shots (EVF on) Photo shooting - 420 shots (LCD Monitor on) Video recording - 1.17 hours (EVF on) Video recording - 1.25 hours (LCD Monitor on) |
CONNECTIONS | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Interface | HDMI, USB 3.0 | HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 |
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Connectivity Features | - | Remote control via mobile devices, remote live view |
Print Standard | Exif Print support | DPOF support, Exif Print support, PRINT Image Matching |
Flash Terminal | Hot shoe | Hot shoe |
Connector Type | USB 2.0 HDMI output Microphone Headphones Remote control |
USB 2.0 (5 pin Micro-USB Type B) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) |
FEATURES | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec, 5 sec |
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Continuous Shooting Speed | 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 | - |
Additional Features | Audio recording, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, GPS ready, interval shooting mode, mirror lock, in-camera RAW processing, peripheral illumination correction, HDR image enhancement technology, Shade Correction, Eye-Fi Card Ready, NR Slow Shutter, High ISO NR, Dynamic Range Compensation, no anti-aliasing filter, Lens Distortion Correction, primary colour filter, Interval Movie Record, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, Flucard Ready | 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, slow motion recording, peripheral shading correction |
OTHERS | Pentax K-3 | Sony Alpha6100 ILCE-6100 |
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Included Accessories | Battery charger, body cap, shoulder strap, USB cable, eyecup, shoe cap, battery grip terminal cover, sync terminal cover | Eyepiece cover, body cap, shoulder strap, AC power adaptor, micro-USB cable |
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Software | Drivers & Utilities | - |
Max Operating Temperature | 40 °C | 40 °C |
Min Operating Temperature | -10 °C | 0 °C |