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Pentax K-7 vs Sony A77 II

Portability
60
Imaging
55
Features
69
Overall
60
Pentax K-7 front
 
Sony SLT-A77 II front
Portability
62
Imaging
66
Features
85
Overall
73

Pentax K-7 vs Sony A77 II Key Specs

Pentax K-7
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 2000 (Expand to 6400)
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 750g - 131 x 97 x 73mm
  • Launched October 2009
  • Later Model is Pentax K-5
Sony A77 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 50 - 25600
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 647g - 143 x 104 x 81mm
  • Revealed May 2014
  • Older Model is Sony A77
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Pentax K-7 vs Sony A77 II Overview

On this page, we are looking at the Pentax K-7 versus Sony A77 II, both Advanced DSLR cameras by rivals Pentax and Sony. There exists a large gap among the sensor resolutions of the K-7 (15MP) and A77 II (24MP) but both cameras offer the same sensor dimensions (APS-C).

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The K-7 was introduced 5 years earlier than the A77 II and that is a fairly serious difference as far as camera technology is concerned. The two cameras have the same body design (Mid-size SLR).

Before diving right into a step-by-step comparison, here is a short highlight of how the K-7 matches up versus the A77 II for portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-7 over the Sony A77 II

 K-7 A77 II 

Reasons to pick Sony A77 II over the Pentax K-7

 A77 II K-7 
RevealedMay 2014October 2009Fresher by 56 months
Display typeFully ArticulatedFixed Fully Articulating display
Display resolution1229k921kClearer display (+308k dot)
Selfie screen Take selfies

Common features in the Pentax K-7 and Sony A77 II

 K-7 A77 II 
Manual focus Very accurate focus
Display dimensions3"3"Equal display sizing
Touch display Missing Touch display

Pentax K-7 vs Sony A77 II Physical Comparison

If you are looking to carry your camera often, you will want to consider its weight and proportions. The Pentax K-7 features outer measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 750 grams (1.65 lbs) and the Sony A77 II has measurements of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 647 grams (1.43 lbs).

Contrast the Pentax K-7 versus Sony A77 II in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will differ dependant on the lens you have at that moment. Here is a front view dimensions comparison of the K-7 and the A77 II.

Pentax K-7 vs Sony A77 II size comparison

Using dimensions and weight, the portability grade of the K-7 and A77 II is 60 and 62 respectively.

Pentax K-7 vs Sony A77 II top view buttons comparison

Pentax K-7 vs Sony A77 II Sensor Comparison

Normally, it can be tough to imagine the gap in sensor sizing simply by looking through technical specs. The graphic underneath should provide you a much better sense of the sensor measurements in the K-7 and A77 II.

As you have seen, each of the cameras provide the same sensor dimensions but different resolution. You can expect to see the Sony A77 II to provide you with greater detail using its extra 9MP. Greater resolution will help you crop pics more aggressively. The older K-7 will be behind in sensor innovation.

Pentax K-7 vs Sony A77 II sensor size comparison

Pentax K-7 vs Sony A77 II Screen and ViewFinder

Pentax K-7 vs Sony A77 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-7 as a Portrait photography camera
Sony A77 II as a Portrait photography camera
73
has manual focus
resolution is good (15MP)
sensor size is nice (APS-C)
comes with face detection focus
delivers RAW files
79
you can focus manually
decent megapixels (24 megapixels)
good sensor size (APS-C)
has face detect focusing
supports RAW formats
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Street Comparison

Pentax K-7 as a Street photography camera
Sony A77 II as a Street photography camera
66
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW files
environment proof
no articulating screen
76
fully articulated screen
image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
environment proofing
above average high ISO (25,600)
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Sports Comparison

Pentax K-7 Sports photography advice
Sony A77 II Sports photography advice
70
maximum shutter speed is high (1/8,000 seconds)
built in image stabilization (Sensor based)
resolution is good (15 megapixels)
sensor size is nice (APS-C)
environment proof
sensor has phase detect auto focus
slow frames per second (5.0 fps)
76
maximum shutter speed is high (1/8,000 seconds)
image stabilization (Sensor based)
decent megapixels (24MP)
good sensor size (APS-C)
has tracking focus
environment proofing
sensor has phase detect AF
not so great battery pack (480 shots)
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Travel Comparison

Pentax K-7 Travel photography information
Sony A77 II Travel photography information
65
environment proof
resolution is good (15 megapixels)
has built in flash
display isn't selfie friendly
64
environment proofing
decent megapixels (24 megapixels)
built-in flash
selfie friendly screen
no Timelapse recording
not so great battery pack (480 shots)
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Landscape Comparison

Pentax K-7 as a Landscape photography camera
Sony A77 II as a Landscape photography camera
78
has manual focus
interchangeable lenses (Pentax KAF2 mount)
screen size is good (3 inches)
built in image stabilization (Sensor based)
resolution is good (15MP)
sensor size is nice (APS-C)
delivers RAW files
environment proof
73
you can focus manually
swap lenses (Sony/Minolta Alpha mount)
pretty good screen size (3 inch)
image stabilization (Sensor based)
decent megapixels (24MP)
good sensor size (APS-C)
above average high ISO (25,600)
supports RAW formats
environment proofing
not so great battery pack (480 per charge)
no Timelapse recording
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Vlogging Comparison

Pentax K-7 Vlogging information
Sony A77 II Vlogging information
25
built in image stabilization (Sensor based)
comes with face detection focus
display isn't selfie friendly
low video resolution (1280 x 720 resolution)
no external microphone jack
78
selfie friendly screen
image stabilization (Sensor based)
has face detect focusing
video resolution high (1920 x 1080 resolution)
includes microphone socket
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Pentax K-7 vs Sony A77 II Specifications

Detailed spec comparison table for Pentax K-7 and Sony A77 II
 Pentax K-7Sony SLT-A77 II
General Information
Brand Name Pentax Sony
Model type Pentax K-7 Sony SLT-A77 II
Category Advanced DSLR Advanced DSLR
Launched 2009-10-02 2014-05-21
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Processor Chip Prime II Bionz X
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.4 x 15.6mm 23.5 x 15.6mm
Sensor surface area 365.0mm² 366.6mm²
Sensor resolution 15MP 24MP
Anti alias filter
Aspect ratio 3:2 3:2 and 16:9
Peak resolution 4672 x 3104 6000 x 4000
Highest native ISO 2000 25600
Highest enhanced ISO 6400 -
Minimum native ISO 100 50
RAW files
Autofocusing
Manual focusing
AF touch
AF continuous
Single AF
AF tracking
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 11 79
Cross type focus points - 15
Lens
Lens support Pentax KAF2 Sony/Minolta Alpha
Total lenses 151 143
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Fully Articulated
Screen diagonal 3 inches 3 inches
Screen resolution 921k dots 1,229k dots
Selfie friendly
Liveview
Touch function
Screen tech TFT color LCD with AR coating -
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic
Viewfinder resolution - 2,359k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.61x 0.73x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/8000 secs
Continuous shutter rate 5.0fps 12.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash distance 13.00 m 12.00 m (at ISO 100)
Flash options Auto, On, Off, Red-eye, Slow Sync, Rear Curtain, Wireless Auto, fill, rear sync, slow sync
External flash
AE bracketing
WB bracketing
Max flash synchronize 1/180 secs 1/250 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1280 x 720 (30 fps), 1536 x 1024 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) 1920 x 1080 (60p, 60i, 30p), 1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution 1280x720 1920x1080
Video data format Motion JPEG MPEG-4, AVCHD, XAVC S
Microphone port
Headphone port
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 750g (1.65 lb) 647g (1.43 lb)
Physical dimensions 131 x 97 x 73mm (5.2" x 3.8" x 2.9") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO Overall rating 61 82
DXO Color Depth rating 22.6 24.4
DXO Dynamic range rating 10.6 13.4
DXO Low light rating 536 1013
Other
Battery life 980 images 480 images
Battery type Battery Pack Battery Pack
Battery ID D-LI90 NP-FM500H
Self timer Yes (2 or 10 sec) Yes (Yes (2 or 12 sec))
Time lapse recording
Storage type SD/SDHC/MMC SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots Single Single
Launch pricing $599 $1,198