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Pentax K-1 II vs Sony A550

Portability
55
Imaging
77
Features
82
Overall
79
Pentax K-1 Mark II front
 
Sony Alpha DSLR-A550 front
Portability
63
Imaging
53
Features
65
Overall
57

Pentax K-1 II vs Sony A550 Key Specs

Pentax K-1 II
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Display
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF4 Mount
  • 1010g - 137 x 110 x 86mm
  • Introduced February 2018
  • Replaced the Pentax K-1
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
  • Introduced December 2009
  • Old Model is Sony A100
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Pentax K-1 II vs Sony A550 Overview

Following is a complete comparison of the Pentax K-1 II and Sony A550, former is a Advanced DSLR while the other is a Entry-Level DSLR by competitors Pentax and Sony. There is a sizable difference between the sensor resolutions of the K-1 II (36MP) and A550 (14MP) and the K-1 II (Full frame) and A550 (APS-C) enjoy different sensor dimensions.

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The K-1 II was brought out 8 years after the A550 which is quite a significant difference as far as tech is concerned. Each of these cameras come with different body type with the Pentax K-1 II being a Mid-size SLR camera and the Sony A550 being a Compact SLR camera.

Before delving straight into a thorough comparison, below is a concise introduction of how the K-1 II matches up against the A550 with regards to portability, imaging, features and an overall score.

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Reasons to pick Pentax K-1 II over the Sony A550

 K-1 II A550 
IntroducedFebruary 2018December 2009More modern by 100 months
Display typeFully ArticulatedTiltingFully Articulating display
Display dimension3.2"3"Larger display (+0.2")
Display resolution1037k922kCrisper display (+115k dot)

Reasons to pick Sony A550 over the Pentax K-1 II

 A550 K-1 II 

Common features in the Pentax K-1 II and Sony A550

 K-1 II A550 
Manual focus Very precise focusing
Selfie screen No selfie screen
Touch display No Touch display

Pentax K-1 II vs Sony A550 Physical Comparison

For anybody who is intending to carry around your camera frequently, you will need to think about its weight and measurements. The Pentax K-1 II enjoys exterior measurements of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") accompanied by a weight of 1010 grams (2.23 lbs) while the Sony A550 has proportions of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") having a weight of 632 grams (1.39 lbs).

Compare the Pentax K-1 II and Sony A550 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will differ depending on the lens you select during that time. The following is the front view sizing comparison of the K-1 II and the A550.

Pentax K-1 II vs Sony A550 size comparison

Looking at size and weight, the portability grade of the K-1 II and A550 is 55 and 63 respectively.

Pentax K-1 II vs Sony A550 top view buttons comparison

Pentax K-1 II vs Sony A550 Sensor Comparison

Generally, it's hard to imagine the difference between sensor sizes just by reviewing specifications. The pic underneath will help provide you a stronger sense of the sensor measurements in the K-1 II and A550.

To sum up, both of these cameras posses different megapixel count and different sensor sizes. The K-1 II featuring a larger sensor is going to make getting shallow DOF less difficult and the Pentax K-1 II will offer extra detail having its extra 22 Megapixels. Greater resolution can also enable you to crop pics somewhat more aggressively. The fresher K-1 II should have an edge when it comes to sensor tech.

Pentax K-1 II vs Sony A550 sensor size comparison

Pentax K-1 II vs Sony A550 Screen and ViewFinder

Pentax K-1 II vs Sony A550 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-1 II Portrait photography factors
Sony A550 Portrait photography factors
86
focusing manually
MP count great (36MP)
big sensor size (Full frame)
supports face detection focusing
supports RAW files
71
you can focus manually
good resolution (14 megapixels)
sensor size is good (APS-C)
has face detection autofocus
saves RAW files
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Street Comparison

Pentax K-1 II Street photography highlights
Sony A550 Street photography highlights
70
screen can move to multiple angles
image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
supports RAW files
environment proofing
great ISO range (819,200)
heavier than competitors in class (1,010g)
74
tilting screen
image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW files
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Sports Comparison

Sports photography with Pentax K-1 II
Sports photography with Sony A550
77
max shutter speed is good (1/8,000s)
image stabilization (Sensor based 5-axis)
MP count great (36MP)
big sensor size (Full frame)
supports tracking autofocus
environment proofing
has phase detect AF
max fps low (4.4 frames per second)
low battery pack (670 shots)
66
image stabilization (Sensor based)
good resolution (14 megapixels)
sensor size is good (APS-C)
comes with phase detect autofocus
terrible battery (480 per charge)
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Travel Comparison

Pentax K-1 II Travel photography information
Sony A550 Travel photography information
53
environment proofing
MP count great (36MP)
low battery pack (670 shots)
heavier than competitors in class (1,010 grams)
does not offer selfie friendly screen
51
good resolution (14MP)
has built in flash
no Time Lapse recording
terrible battery (480 per charge)
doesn't have a selfie friendly display
Photography Glossary

Landscape Comparison

Pentax K-1 II Landscape photography details
Sony A550 Landscape photography details
82
focusing manually
change lenses (Pentax KAF4 mount)
screen is a decent size (3.2 inch)
image stabilization (Sensor based 5-axis)
MP count great (36MP)
big sensor size (Full frame)
doesnt have low pass filter
great ISO range (819,200)
supports RAW files
environment proofing
2 card slots
low battery pack (670 per charge)
66
you can focus manually
switch lenses (Sony/Minolta Alpha mount)
nice screen size (3")
image stabilization (Sensor based)
good resolution (14MP)
sensor size is good (APS-C)
saves RAW files
terrible battery (480 CIPA)
no Time Lapse recording
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Vlogging Comparison

Pentax K-1 II as a Vlogging camera
Sony A550 as a Vlogging camera
32
image stabilization (Sensor based 5-axis)
supports face detection focusing
video res high (1920 x 1080 resolution)
has external mic support
does not offer selfie friendly screen
heavier than competitors in class (1,010 grams)
9
no video recording
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Pentax K-1 II vs Sony A550 Specifications

Detailed spec comparison table for Pentax K-1 II and Sony A550
 Pentax K-1 Mark IISony Alpha DSLR-A550
General Information
Company Pentax Sony
Model Pentax K-1 Mark II Sony Alpha DSLR-A550
Category Advanced DSLR Entry-Level DSLR
Introduced 2018-02-22 2009-12-09
Physical type Mid-size SLR Compact SLR
Sensor Information
Chip PRIME IV Bionz
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.9 x 24mm 23.4 x 15.6mm
Sensor surface area 861.6mm² 365.0mm²
Sensor resolution 36 megapixels 14 megapixels
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Full resolution 7360 x 4912 4592 x 3056
Max native ISO 819200 12800
Minimum native ISO 100 200
RAW data
Autofocusing
Focus manually
AF touch
AF continuous
AF single
AF tracking
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 33 9
Cross focus points 25 -
Lens
Lens mount Pentax KAF4 Sony/Minolta Alpha
Amount of lenses 151 143
Focal length multiplier 1 1.5
Screen
Display type Fully Articulated Tilting
Display sizing 3.2 inch 3 inch
Resolution of display 1,037k dots 922k dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.7x 0.53x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/4000s
Continuous shooting rate 4.4 frames/s 7.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash range no built-in flash 12.00 m
Flash options Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AE bracketing
WB bracketing
Maximum flash synchronize 1/200s 1/160s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) -
Max video resolution 1920x1080 None
Video format MPEG-4, H.264 -
Mic port
Headphone port
Connectivity
Wireless Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Built-in None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1010 grams (2.23 lbs) 632 grams (1.39 lbs)
Dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 137 x 104 x 84mm (5.4" x 4.1" x 3.3")
DXO scores
DXO All around score not tested 66
DXO Color Depth score not tested 21.9
DXO Dynamic range score not tested 11.8
DXO Low light score not tested 807
Other
Battery life 670 images 480 images
Battery type Battery Pack Battery Pack
Battery model D-LI90 NP-FM500H
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec)
Time lapse recording
Type of storage Dual SD/SDHC/SDXC (UHS-I) SD/ SDHC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots 2 One
Retail cost $1,737 $749