Pentax K-1 vs Sony A9
55 Imaging
75 Features
82 Overall
77


65 Imaging
73 Features
93 Overall
81
Pentax K-1 vs Sony A9 Key Specs
(Full Review)
- 36MP - Full frame Sensor
- 3.2" Fully Articulated Display
- ISO 100 - 204800
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 1010g - 137 x 110 x 86mm
- Announced February 2016
- Refreshed by Pentax K-1 II
(Full Review)
- 24MP - Full frame Sensor
- 3" Tilting Screen
- ISO 100 - 51200 (Push to 204800)
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 3840 x 2160 video
- Sony E Mount
- 673g - 127 x 96 x 63mm
- Released April 2017
- Replacement is Sony A9 II

Pentax K-1 vs Sony A9 Overview
Following is a in depth analysis of the Pentax K-1 and Sony A9, one is a Advanced DSLR and the latter is a Pro Mirrorless by competitors Pentax and Sony. There exists a crucial gap among the image resolutions of the K-1 (36MP) and A9 (24MP) but they come with the same exact sensor measurements (Full frame).

The K-1 was announced 14 months before the A9 which makes the cameras a generation away from one another. Each of these cameras offer different body type with the Pentax K-1 being a Mid-size SLR camera and the Sony A9 being a SLR-style mirrorless camera.
Before delving through a in depth comparison, below is a short summary of how the K-1 scores vs the A9 for portability, imaging, features and an overall score.

Pentax K-1 vs Sony A9 Gallery
Here is a preview of the gallery images for Pentax K-1 and Sony Alpha A9. The whole galleries are available at Pentax K-1 Gallery and Sony A9 Gallery.
Reasons to pick Pentax K-1 over the Sony A9
K-1 | A9 | |||
---|---|---|---|---|
Screen type | Fully Articulated | ![]() | Tilting | Fully Articulating screen |
Screen sizing | 3.2" | ![]() | 3" | Bigger screen (+0.2") |
Reasons to pick Sony A9 over the Pentax K-1
A9 | K-1 | |||
---|---|---|---|---|
Released | April 2017 | ![]() | February 2016 | More modern by 14 months |
Screen resolution | 1440k | ![]() | 1037k | Crisper screen (+403k dot) |
Touch screen | ![]() | Quickly navigate |
Common features in the Pentax K-1 and Sony A9
K-1 | A9 | |||
---|---|---|---|---|
Manually focus | ![]() | Dial accurate focus | ||
Selfie screen | ![]() | Neither has selfie screen |
Pentax K-1 vs Sony A9 Physical Comparison
If you're intending to carry around your camera regularly, you have to think about its weight and dimensions. The Pentax K-1 has outside dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") and a weight of 1010 grams (2.23 lbs) while the Sony A9 has dimensions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") and a weight of 673 grams (1.48 lbs).
Examine the Pentax K-1 and Sony A9 in the latest Camera and Lens Size Comparison Tool.
Take into consideration, the weight of an Interchangeable Lens Camera will differ dependant on the lens you select at the time. Here is the front view proportions comparison of the K-1 and the A9.

Factoring in dimensions and weight, the portability rating of the K-1 and A9 is 55 and 65 respectively.

Pentax K-1 vs Sony A9 Sensor Comparison
Normally, it is very hard to see the difference in sensor sizes simply by researching specifications. The image underneath will help provide you a far better sense of the sensor dimensions in the K-1 and A9.
Plainly, both of those cameras offer the same exact sensor sizing albeit not the same resolution. You should expect the Pentax K-1 to render greater detail with its extra 12 Megapixels. Higher resolution can also enable you to crop pictures a little more aggressively. The more aged K-1 will be disadvantaged in sensor innovation.

Pentax K-1 vs Sony A9 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-1 vs Sony A9 Specifications
Pentax K-1 | Sony Alpha A9 | |
---|---|---|
General Information | ||
Company | Pentax | Sony |
Model | Pentax K-1 | Sony Alpha A9 |
Category | Advanced DSLR | Pro Mirrorless |
Announced | 2016-02-17 | 2017-04-19 |
Physical type | Mid-size SLR | SLR-style mirrorless |
Sensor Information | ||
Processor Chip | - | BIONZ X |
Sensor type | CMOS | BSI-CMOS |
Sensor size | Full frame | Full frame |
Sensor measurements | 35.9 x 24mm | 35.6 x 23.8mm |
Sensor surface area | 861.6mm² | 847.3mm² |
Sensor resolution | 36MP | 24MP |
Anti aliasing filter | ||
Aspect ratio | 3:2 | 3:2 and 16:9 |
Maximum resolution | 7360 x 4912 | 6000 x 4000 |
Maximum native ISO | 204800 | 51200 |
Maximum boosted ISO | - | 204800 |
Lowest native ISO | 100 | 100 |
RAW format | ||
Lowest boosted ISO | - | 50 |
Autofocusing | ||
Focus manually | ||
Touch focus | ||
Continuous AF | ||
Single AF | ||
Tracking AF | ||
AF selectice | ||
Center weighted AF | ||
AF multi area | ||
Live view AF | ||
Face detect AF | ||
Contract detect AF | ||
Phase detect AF | ||
Number of focus points | 33 | 693 |
Cross focus points | 25 | - |
Lens | ||
Lens mounting type | Pentax KAF2 | Sony E |
Total lenses | 151 | 121 |
Crop factor | 1 | 1 |
Screen | ||
Display type | Fully Articulated | Tilting |
Display sizing | 3.2 inch | 3 inch |
Display resolution | 1,037k dots | 1,440k dots |
Selfie friendly | ||
Liveview | ||
Touch capability | ||
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | Electronic |
Viewfinder resolution | - | 3,686k dots |
Viewfinder coverage | 100 percent | 100 percent |
Viewfinder magnification | 0.7x | 0.78x |
Features | ||
Lowest shutter speed | 30 secs | 30 secs |
Highest shutter speed | 1/8000 secs | 1/8000 secs |
Highest quiet shutter speed | - | 1/32000 secs |
Continuous shooting rate | 4.4 frames per sec | 20.0 frames per sec |
Shutter priority | ||
Aperture priority | ||
Manual mode | ||
Exposure compensation | Yes | Yes |
Custom WB | ||
Image stabilization | ||
Built-in flash | ||
Flash range | no built-in flash | no built-in flash |
Flash modes | 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 | Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync |
Hot shoe | ||
Auto exposure bracketing | ||
White balance bracketing | ||
Highest flash synchronize | 1/200 secs | - |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | - |
Maximum video resolution | 1920x1080 | 3840x2160 |
Video data format | MPEG-4, H.264 | MPEG-4, AVCHD, H.264 |
Microphone port | ||
Headphone port | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | Built-in | None |
Physical | ||
Environment sealing | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 1010 gr (2.23 lb) | 673 gr (1.48 lb) |
Dimensions | 137 x 110 x 86mm (5.4" x 4.3" x 3.4") | 127 x 96 x 63mm (5.0" x 3.8" x 2.5") |
DXO scores | ||
DXO All around score | 96 | 92 |
DXO Color Depth score | 25.4 | 24.9 |
DXO Dynamic range score | 14.6 | 13.3 |
DXO Low light score | 3280 | 3517 |
Other | ||
Battery life | 760 pictures | 650 pictures |
Style of battery | Battery Pack | Battery Pack |
Battery model | D-LI90 | NP-FZ100 |
Self timer | Yes (2 or 12 sec, custom) | Yes (2, 5, 10 secs + continuous) |
Time lapse feature | ||
Type of storage | Dual SD/SDHC/SDXC (UHS-I) | Dual SD/SDHC/SDXC slots (UHS-II compatible) |
Card slots | 2 | 2 |
Pricing at launch | $1,499 | $4,498 |