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Pentax K-50 vs Sony A550

Portability
63
Imaging
58
Features
65
Overall
60
Pentax K-50 front
 
Sony Alpha DSLR-A550 front
Portability
63
Imaging
54
Features
65
Overall
58

Pentax K-50 vs Sony A550 Key Specs

Pentax K-50
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 51600
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 650g - 130 x 97 x 71mm
  • Introduced November 2013
  • Superseded the Pentax K-30
Sony A550
(Full Review)
  • 14MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 200 - 12800
  • Sensor based Image Stabilization
  • No Video
  • Sony/Minolta Alpha Mount
  • 632g - 137 x 104 x 84mm
  • Revealed December 2009
  • Older Model is Sony A100
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Pentax K-50 vs Sony A550 Overview

Here, we are matching up the Pentax K-50 and Sony A550, both Entry-Level DSLR digital cameras by manufacturers Pentax and Sony. The image resolution of the K-50 (16MP) and the A550 (14MP) is very well matched and both cameras have the identical sensor measurements (APS-C).

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The K-50 was launched 4 years later than the A550 and that is quite a serious difference as far as technology is concerned. Each of the cameras feature the same body design (Compact SLR).

Before delving right into a more detailed comparison, here is a simple view of how the K-50 scores vs the A550 with regards to portability, imaging, features and an overall rating.

Photography Glossary
	
	

Reasons to pick Pentax K-50 over the Sony A550

 K-50 A550 
RevealedNovember 2013December 2009Fresher by 49 months

Reasons to pick Sony A550 over the Pentax K-50

 A550 K-50 
Display typeTiltingFixed Tilting display
Display resolution922k921kClearer display (+1k dot)

Common features in the Pentax K-50 and Sony A550

 K-50 A550 
Focus manually Dial exact focusing
Display size3"3"Same display measurements
Selfie screen Neither has selfie screen
Touch display Neither has Touch display

Pentax K-50 vs Sony A550 Physical Comparison

When you are looking to carry your camera frequently, you're going to have to factor its weight and volume. The Pentax K-50 has outside dimensions of 130mm x 97mm x 71mm (5.1" x 3.8" x 2.8") along with a weight of 650 grams (1.43 lbs) and the Sony A550 has sizing of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") accompanied by a weight of 632 grams (1.39 lbs).

Analyze the Pentax K-50 and Sony A550 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will vary dependant on the lens you use at that time. Here is a front view dimension comparison of the K-50 against the A550.

Pentax K-50 vs Sony A550 size comparison

Factoring in dimensions and weight, the portability grade of the K-50 and A550 is 63 and 63 respectively.

Pentax K-50 vs Sony A550 top view buttons comparison

Pentax K-50 vs Sony A550 Sensor Comparison

More often than not, it's difficult to visualize the contrast between sensor sizing just by checking technical specs. The photograph underneath may provide you a greater sense of the sensor dimensions in the K-50 and A550.

As you can tell, both of those cameras come with the identical sensor size but different MP. You can expect to see the Pentax K-50 to give more detail utilizing its extra 2 Megapixels. Greater resolution will also make it easier to crop photos a good deal more aggressively. The fresher K-50 should have an advantage when it comes to sensor technology.

Pentax K-50 vs Sony A550 sensor size comparison

Pentax K-50 vs Sony A550 Screen and ViewFinder

Pentax K-50 vs Sony A550 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-50
Portrait photography with Sony A550
74
has manual focus
megapixel count good (16 megapixels)
sensor size is decent (APS-C)
provides face detection autofocus
saves RAW files
72
you can focus manually
decent sensor resolution (14 megapixels)
sensor size is nice (APS-C)
includes face detect focusing
delivers RAW files
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Street Comparison

Pentax K-50 Street photography advice
Sony A550 Street photography advice
65
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW files
environment proofing
above average ISO range (51,600)
fixed screen
heavier than others in class (650g)
74
tilting screen
has image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW files
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Sports Comparison

Pentax K-50 as a Sports photography camera
Sony A550 as a Sports photography camera
67
great max shutter speed (1/6,000 seconds)
built in image stabilization (Sensor based)
megapixel count good (16 megapixels)
sensor size is decent (APS-C)
provides tracking autofocus
environment proofing
has phase detect autofocus
painfully slow continuous shooting (6.0 frames/s)
low battery (410 per charge)
67
has image stabilization (Sensor based)
decent sensor resolution (14MP)
sensor size is nice (APS-C)
comes with phase detect AF
not so great battery life (480 shots)
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Travel Comparison

Pentax K-50 Travel photography advice
Sony A550 Travel photography advice
56
environment proofing
megapixel count good (16MP)
flash built-in
low battery (410 shots)
heavier than others in class (650 grams)
doesn't offer selfie friendly display
52
decent sensor resolution (14MP)
has built in flash
no Timelapse mode
not so great battery life (480 CIPA)
does not offer selfie friendly screen
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Landscape Comparison

Pentax K-50 Landscape photography info
Sony A550 Landscape photography info
74
has manual focus
switch lenses (Pentax KAF2 mount)
screen is a good size (3")
built in image stabilization (Sensor based)
megapixel count good (16 megapixels)
sensor size is decent (APS-C)
above average ISO range (51,600)
saves RAW files
environment proofing
low battery (410 per charge)
66
you can focus manually
change lenses (Sony/Minolta Alpha mount)
screen size is decent (3 inches)
has image stabilization (Sensor based)
decent sensor resolution (14MP)
sensor size is nice (APS-C)
delivers RAW files
not so great battery life (480 CIPA)
no Timelapse mode
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Vlogging Comparison

Pentax K-50 as a Vlogging camera
Sony A550 as a Vlogging camera
28
built in image stabilization (Sensor based)
provides face detection autofocus
video resolution high (1920 x 1080 resolution)
doesn't offer selfie friendly display
doesn't have external mic socket
heavier than others in class (650g)
9
no video
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Pentax K-50 vs Sony A550 Specifications

Detailed spec comparison table for Pentax K-50 and Sony A550
 Pentax K-50Sony Alpha DSLR-A550
General Information
Manufacturer Pentax Sony
Model Pentax K-50 Sony Alpha DSLR-A550
Class Entry-Level DSLR Entry-Level DSLR
Introduced 2013-11-27 2009-12-09
Physical type Compact SLR Compact SLR
Sensor Information
Processor Chip PRIME M Bionz
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.7 x 15.7mm 23.4 x 15.6mm
Sensor surface area 372.1mm² 365.0mm²
Sensor resolution 16 megapixel 14 megapixel
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Max resolution 4928 x 3264 4592 x 3056
Max native ISO 51600 12800
Min native ISO 100 200
RAW files
Autofocusing
Focus manually
Touch to focus
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 11 9
Cross focus points 9 -
Lens
Lens mount Pentax KAF2 Sony/Minolta Alpha
Total lenses 151 143
Crop factor 1.5 1.5
Screen
Screen type Fixed Type Tilting
Screen diagonal 3" 3"
Resolution of screen 921k dots 922k dots
Selfie friendly
Liveview
Touch functionality
Screen tech TFT LCD monitor with brightness/color adjustment and AR coating -
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.61x 0.53x
Features
Minimum shutter speed 30 secs 30 secs
Fastest shutter speed 1/6000 secs 1/4000 secs
Continuous shutter rate 6.0 frames per second 7.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range 12.00 m (at ISO 100) 12.00 m
Flash settings Auto, On, Off, Red-eye, Slow Sync, Slow Sync+Redeye, Trailing Curtain Sync, Wireless Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
Auto exposure bracketing
WB bracketing
Fastest flash synchronize 1/180 secs 1/160 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50,30,25,24 fps), 640 x 424 (30,25,24 fps) -
Max video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Microphone support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 650 gr (1.43 lbs) 632 gr (1.39 lbs)
Physical dimensions 130 x 97 x 71mm (5.1" x 3.8" x 2.8") 137 x 104 x 84mm (5.4" x 4.1" x 3.3")
DXO scores
DXO Overall score 79 66
DXO Color Depth score 23.7 21.9
DXO Dynamic range score 13.0 11.8
DXO Low light score 1120 807
Other
Battery life 410 shots 480 shots
Type of battery Battery Pack Battery Pack
Battery model D-LI109 NP-FM500H
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC SD/ SDHC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots 1 1
Pricing at release $610 $749