Pentax K-1 II vs Sony A77 II
55 Imaging
77 Features
82 Overall
79


62 Imaging
65 Features
85 Overall
73
Pentax K-1 II vs Sony A77 II 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
- Announced February 2018
- Old Model is Pentax K-1
(Full Review)
- 24MP - APS-C Sensor
- 3" Fully Articulated Screen
- 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
- Released May 2014
- Replaced the Sony A77

Pentax K-1 II vs Sony A77 II Overview
The following is a in-depth assessment of the Pentax K-1 II vs Sony A77 II, both Advanced DSLR cameras by manufacturers Pentax and Sony. There is a sizable difference among the resolutions of the K-1 II (36MP) and A77 II (24MP) and the K-1 II (Full frame) and A77 II (APS-C) come with totally different sensor measurements.

The K-1 II was introduced 3 years after the A77 II which is a fairly significant difference as far as camera tech is concerned. Both the cameras offer the identical body type (Mid-size SLR).
Before going in to a more detailed comparison, below is a quick highlight of how the K-1 II grades vs the A77 II in relation to portability, imaging, features and an overall mark.

Pentax K-1 II vs Sony A77 II Gallery
The following is a preview of the gallery photos for Pentax K-1 Mark II & Sony SLT-A77 II. The whole galleries are viewable at Pentax K-1 II Gallery & Sony A77 II Gallery.
Reasons to pick Pentax K-1 II over the Sony A77 II
K-1 II | A77 II | |||
---|---|---|---|---|
Released | February 2018 | ![]() | May 2014 | Newer by 46 months |
Screen sizing | 3.2" | ![]() | 3" | Bigger screen (+0.2") |
Reasons to pick Sony A77 II over the Pentax K-1 II
A77 II | K-1 II | |||
---|---|---|---|---|
Screen resolution | 1229k | ![]() | 1037k | Clearer screen (+192k dot) |
Selfie screen | ![]() | Easy selfies |
Common features in the Pentax K-1 II and Sony A77 II
K-1 II | A77 II | |||
---|---|---|---|---|
Manually focus | ![]() | More exact focus | ||
Screen type | Fully Articulated | ![]() | Fully Articulated | Fully Articulated screen |
Touch friendly screen | ![]() | Missing Touch friendly screen |
Pentax K-1 II vs Sony A77 II Physical Comparison
When you are intending to travel with your camera regularly, you have to factor in its weight and measurements. The Pentax K-1 II provides exterior measurements of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") and a weight of 1010 grams (2.23 lbs) and the Sony A77 II has proportions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 647 grams (1.43 lbs).
Compare the Pentax K-1 II vs Sony A77 II in our newest Camera & Lens Size Comparison Tool.
Remember, the weight of an ILC will differ depending on the lens you have attached during that time. Following is the front view measurement comparison of the K-1 II vs the A77 II.

Factoring in size and weight, the portability rating of the K-1 II and A77 II is 55 and 62 respectively.

Pentax K-1 II vs Sony A77 II Sensor Comparison
Usually, it's difficult to see the difference in sensor dimensions simply by researching specs. The image here will help give you a more clear sense of the sensor sizing in the K-1 II and A77 II.
As you can plainly see, both of those cameras enjoy different megapixels and different sensor dimensions. The K-1 II with its bigger sensor will make shooting shallower DOF easier and the Pentax K-1 II will result in extra detail using its extra 12 Megapixels. Higher resolution will allow you to crop shots far more aggressively. The newer K-1 II is going to have a benefit in sensor tech.

Pentax K-1 II vs Sony A77 II Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-1 II vs Sony A77 II Specifications
Pentax K-1 Mark II | Sony SLT-A77 II | |
---|---|---|
General Information | ||
Make | Pentax | Sony |
Model | Pentax K-1 Mark II | Sony SLT-A77 II |
Category | Advanced DSLR | Advanced DSLR |
Announced | 2018-02-22 | 2014-05-21 |
Body design | Mid-size SLR | Mid-size SLR |
Sensor Information | ||
Processor | PRIME IV | Bionz X |
Sensor type | CMOS | CMOS |
Sensor size | Full frame | APS-C |
Sensor dimensions | 35.9 x 24mm | 23.5 x 15.6mm |
Sensor area | 861.6mm² | 366.6mm² |
Sensor resolution | 36 megapixel | 24 megapixel |
Anti aliasing filter | ||
Aspect ratio | 3:2 | 3:2 and 16:9 |
Highest resolution | 7360 x 4912 | 6000 x 4000 |
Highest native ISO | 819200 | 25600 |
Min native ISO | 100 | 50 |
RAW files | ||
Autofocusing | ||
Manual focus | ||
Touch to focus | ||
Continuous autofocus | ||
Single autofocus | ||
Autofocus tracking | ||
Selective autofocus | ||
Autofocus center weighted | ||
Autofocus multi area | ||
Autofocus live view | ||
Face detect autofocus | ||
Contract detect autofocus | ||
Phase detect autofocus | ||
Number of focus points | 33 | 79 |
Cross focus points | 25 | 15 |
Lens | ||
Lens mounting type | Pentax KAF4 | Sony/Minolta Alpha |
Available lenses | 151 | 143 |
Focal length multiplier | 1 | 1.5 |
Screen | ||
Range of display | Fully Articulated | Fully Articulated |
Display size | 3.2 inch | 3 inch |
Resolution of display | 1,037 thousand dot | 1,229 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch display | ||
Viewfinder Information | ||
Viewfinder type | Optical (pentaprism) | Electronic |
Viewfinder resolution | - | 2,359 thousand dot |
Viewfinder coverage | 100% | 100% |
Viewfinder magnification | 0.7x | 0.73x |
Features | ||
Lowest shutter speed | 30s | 30s |
Highest shutter speed | 1/8000s | 1/8000s |
Continuous shooting speed | 4.4 frames/s | 12.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manual exposure | ||
Exposure compensation | Yes | Yes |
Custom white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash range | no built-in flash | 12.00 m (at ISO 100) |
Flash settings | 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, fill, rear sync, slow sync |
External flash | ||
Auto exposure bracketing | ||
White balance bracketing | ||
Highest flash sync | 1/200s | 1/250s |
Exposure | ||
Multisegment | ||
Average | ||
Spot | ||
Partial | ||
AF area | ||
Center weighted | ||
Video features | ||
Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | 1920 x 1080 (60p, 60i, 30p), 1440 x 1080 (30p), 640 x 480 (30p) |
Highest video resolution | 1920x1080 | 1920x1080 |
Video file format | MPEG-4, H.264 | MPEG-4, AVCHD, XAVC S |
Mic jack | ||
Headphone jack | ||
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 | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | Built-in | None |
Physical | ||
Environmental seal | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 1010 grams (2.23 lbs) | 647 grams (1.43 lbs) |
Dimensions | 137 x 110 x 86mm (5.4" x 4.3" x 3.4") | 143 x 104 x 81mm (5.6" x 4.1" x 3.2") |
DXO scores | ||
DXO All around score | not tested | 82 |
DXO Color Depth score | not tested | 24.4 |
DXO Dynamic range score | not tested | 13.4 |
DXO Low light score | not tested | 1013 |
Other | ||
Battery life | 670 photographs | 480 photographs |
Type of battery | Battery Pack | Battery Pack |
Battery model | D-LI90 | NP-FM500H |
Self timer | Yes (2 or 12 sec, custom) | Yes (Yes (2 or 12 sec)) |
Time lapse shooting | ||
Type of storage | Dual SD/SDHC/SDXC (UHS-I) | SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo |
Storage slots | Two | One |
Retail pricing | $1,737 | $1,198 |