Pentax K-1 II vs Sony A550
55 Imaging
77 Features
82 Overall
79


63 Imaging
53 Features
65 Overall
57
Pentax K-1 II vs Sony A550 Key Specs
(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
(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

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.

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.

Pentax K-1 II vs Sony A550 Gallery
Following is a sample of the gallery pics for Pentax K-1 Mark II & Sony Alpha DSLR-A550. The entire galleries are provided at Pentax K-1 II Gallery & Sony A550 Gallery.
Reasons to pick Pentax K-1 II over the Sony A550
K-1 II | A550 | |||
---|---|---|---|---|
Introduced | February 2018 | ![]() | December 2009 | More modern by 100 months |
Display type | Fully Articulated | ![]() | Tilting | Fully Articulating display |
Display dimension | 3.2" | ![]() | 3" | Larger display (+0.2") |
Display resolution | 1037k | ![]() | 922k | Crisper 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.
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.

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 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 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-1 II vs Sony A550 Specifications
Pentax K-1 Mark II | Sony 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 |