Sony Alpha77 II ILCA-77M2 vs. Pentax K-S1

Camera Comparison, Reviews and Tests

In depth comparison and review of Sony Alpha77 II ILCA-77M2 and Pentax K-S1. 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 Alpha77 II ILCA-77M2 vs. Pentax K-S1 Comparison Chart
DESIGN AND DIMENSIONS Sony Alpha77 II ILCA-77M2 Pentax K-S1
Product Type Digital camera - SLR with Live View mode, movie recording Digital camera - 1080p - SLR with Live View mode, movie recording
Lens Included Body only Body only
Height 10.42 cm 9.3 cm
Width 14.2 cm 12 cm
Depth 8.09 cm 7 cm
Weight 647 g 485 g
Body Material Magnesium alloy -
Enclosure Colour Black White | Black
Protection Weatherproof -
SENSOR Sony Alpha77 II ILCA-77M2 Pentax K-S1
Sensor Resolution 24.3 Megapixel 20.12 Megapixel
Optical Sensor Type Exmor APS HD CMOS CMOS
Total Pixels 24,700,000 pixels 20,420,000 pixels
Effective Sensor Resolution 24,300,000 pixels 20,120,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) APS-C (23.5 x 15.6 mm)
Sensor Dust Reduction Yes Yes
Sensor Features Dust Reduction (image sensor vibration), Anti-Dust coating Special Protect (SP) coating
Image Stabiliser Optical (SteadyShot INSIDE) -
Built-in Optical Image Stabiliser Yes -
PROCESSOR Sony Alpha77 II ILCA-77M2 Pentax K-S1
Image Processor BIONZ X PRIME MII
LENS Sony Alpha77 II ILCA-77M2 Pentax K-S1
Lens Mounting Type - Pentax KAF2
FOCUSING Sony Alpha77 II ILCA-77M2 Pentax K-S1
Auto Focus TTL phase detection TTL phase detection
Auto Focus Points (Zones) Qty 79 11
Auto Focus Features Predictive Focus Control -
AE/AF Control Subject-tracking AF, Eye detection AF Face-priority AF, Subject-tracking AF
Face Detection Smile Shutter Yes
VIEWFINDER Sony Alpha77 II ILCA-77M2 Pentax K-S1
Viewfinder Type Electronic - OLED Optical - fixed eye-level pentaprism
Viewfinder Colour Support Colour -
Viewfinder Diagonal Size 0.5" -
Viewfinder Resolution 2,359,296 pixels -
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 1.09x 0.95x
Optical Viewfinder Dioptric Correction Range -4 to +3 -2.5 to +1.5
Field of View Crop Factor 1.5 -
EXPOSURE & WHITE BALANCE Sony Alpha77 II ILCA-77M2 Pentax K-S1
ISO (Max) 25600 51200
Native ISO 50-25600 100-51200
Light Sensitivity ISO auto (100-25600), ISO 100 - 25600 ISO 100-51200, ISO auto (100-51200)
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, spot
Exposure Metering Zones 1200 77
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority
Shooting Programs Landscape, portrait mode, macro, night portrait, night scene, sports mode, sunset, handheld twilight Landscape, portrait mode, macro, museum, surf & snow, PET, Blue Sky, food, night scene, sunset, candle, night snapshot, night scene with portrait, kids, Stage, night scene HDR, moving object, forest, backlight silhouette
Special Effects 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 Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film, Tone Expansion, Cold vintage, Colour Fade, Bold Monochrome, Unicolour Bold, Clear Tone, Warm Fade, Brilliant Colour, Infrared Filter
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Incandescent, Flash, fluorescent light (cool white), fluorescent light (warm white), 2500K - 9900K, fluorescent light (daylight white), Colour Filter (G7 - M7), Colour Filter (A7 - B7) Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white)
Shutter Type Mechanical electronically-controlled Mechanical electronically-controlled
Max Shutter Speed 1/8000 sec 1/6000 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
White Balance Bracketing Yes Yes
X-sync Speed 1/250sec 1/180 sec
Exposure Range EV -2-17 (ISO 100) EV 0-22 (ISO 100)
DISPLAY Sony Alpha77 II ILCA-77M2 Pentax K-S1
Type 3" LCD display 3" LCD display
Display Format 1,228,800 pixels 921,000 pixels
Display Form Factor Rotating Built-in
Display Features Contrast control, display brightness control Colour control, display brightness control
FLASH Sony Alpha77 II ILCA-77M2 Pentax K-S1
Camera Flash Pop-up flash Pop-up flash
Guide Number (m / ISO 100) 12 10
Flash Modes Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction
Red-Eye Reduction Yes Yes
Features AF illuminator, flash +/- compensation, wireless off-camera control AF illuminator, flash +/- compensation
VIDEOGRAPHY / CAMCORDER Sony Alpha77 II ILCA-77M2 Pentax K-S1
Digital Video Format AVCHD, H.264 H.264
Image Recording Format JPEG, RAW, RAW + JPEG JPEG, DNG (RAW) + JPEG, DNG (RAW)
Max Video Resolution 1920 x 1080 1920 x 1080
Surround Sound Dolby Digital AC-3 (2 channel) recording -
Microphone Operation Mode Stereo Mono
Microphone Features - Sensitivity control
MEMORY Sony Alpha77 II ILCA-77M2 Pentax K-S1
Memory Card Slot Memory Stick PRO Duo card, SD card 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, Memory Stick XC-HG Duo SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDXC UHS-I Memory Card
Image Storage 6000 x 4000
4240 x 2832
3008 x 2000
6000 x 3376
4240 x 2400
3008 x 1688
-
Video Capture AVCHD - 1920 x 1080 - 50 fps - 28Mbps
AVCHD - 1920 x 1080 - 50 fps - 24Mbps
AVCHD - 1920 x 1080 - 50 fps - 17Mbps
AVCHD - 1920 x 1080 - 25 fps - 24Mbps
AVCHD - 1920 x 1080 - 25 fps - 17Mbps
H.264 - 1440 x 1080 - 30 fps - 12Mbps
H.264 - 640 x 480 - 30 fps - 3Mbps
H.264 - 1920 x 1080 - 30 fps
H.264 - 1920 x 1080 - 25 fps
H.264 - 1920 x 1080 - 24 fps
BATTERY AND CHARGING Sony Alpha77 II ILCA-77M2 Pentax K-S1
Battery Type Sony NP-FM500H Lithium Ion Pentax D-Li109 Lithium Ion
Details Sony NP-FM500H Li-ion rechargeable battery (included) Pentax D-Li109 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 410 shots (EVF on)
Photo shooting - 480 shots (LCD Monitor on)
Photo shooting - 480 shots (50% flash usage)
Playback - 4.5 hours
CONNECTIONS Sony Alpha77 II ILCA-77M2 Pentax K-S1
Interface HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication) HDMI
Connectivity Features Remote live view -
Print Standard DPOF support, Exif Print support, PRINT Image Matching DPOF support, Exif Print support
Flash Terminal Hot shoe Hot shoe
Connector Type HDMI output
USB 2.0
Remote control
Microphone
USB 2.0
HDMI output (19 pin micro HDMI Type D)
FEATURES Sony Alpha77 II ILCA-77M2 Pentax K-S1
Self-Timer Delay 10 sec, 2sec 2sec, 12sec
Continuous Shooting Speed 8 frames per second, 3 frames per second, 12 frames per second 3 frames per second, 5.4 frames per second
HDR Mode - Auto HDR mode
Additional Features RGB primary colour filter, date/time stamp, sharpness control, histogram display, AE lock, AF lock, saturation control, Sweep Panorama technology, LCD live view mode, Dynamic Range Optimizer, face detection, Multi-Frame Noise Reduction, Intelligent AUTO (iAUTO), NR Slow Shutter, High ISO NR, Superior Auto mode, BRAVIA Sync function, Translucent Mirror technology RGB primary colour filter, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera film editing, in-camera RAW processing, HDR image enhancement technology, hue control, Eye-Fi Card Ready, LED body illumination
OTHERS Sony Alpha77 II ILCA-77M2 Pentax K-S1
Included Accessories Eyepiece cover, battery charger, body cap, shoulder strap, shoe cap, micro-USB cable Battery charger, body cap, shoulder strap, eyecup, shoe cap
Software Sony Picture Motion Browser, Sony Image Data Converter SR, Sony Image Data Lightbox SR Drivers & Utilities
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C -10 °C
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