Pentax K-1 vs Sony RX1R II
55 Imaging
75 Features
82 Overall
77
78 Imaging
75 Features
65 Overall
71
Pentax K-1 vs Sony RX1R II 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 Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 1010g - 137 x 110 x 86mm
- Released February 2016
- Later Model is Pentax K-1 II
(Full Review)
- 42MP - Full frame Sensor
- 3" Tilting Screen
- ISO 50 - 25600 (Bump to 102400)
- No Anti-Alias Filter
- 1920 x 1080 video
- 35mm (F2.0) lens
- 507g - 113 x 65 x 72mm
- Launched October 2015
- Superseded the Sony RX1R
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On this page, we will be comparing the Pentax K-1 versus Sony RX1R II, former is a Advanced DSLR while the latter is a Large Sensor Compact by brands Pentax and Sony. The sensor resolution of the K-1 (36MP) and the RX1R II (42MP) is relatively close and both cameras offer the same sensor sizes (Full frame).
Photobucket discusses licensing 13 billion images with AI firmsThe K-1 was announced 5 months after the RX1R II which means that they are of a similar age. Both cameras have different body design with the Pentax K-1 being a Mid-size SLR camera and the Sony RX1R II being a Large Sensor Compact camera.
Before diving into a more detailed comparison, here is a short summary of how the K-1 grades versus the RX1R II in relation to portability, imaging, features and an overall score.
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Following is a preview of the gallery photos for Pentax K-1 & Sony Cyber-shot DSC-RX1R II. The whole galleries are available at Pentax K-1 Gallery & Sony RX1R II Gallery.
Reasons to pick Pentax K-1 over the Sony RX1R II
| K-1 | RX1R II | |||
|---|---|---|---|---|
| Screen type | Fully Articulated | Tilting | Fully Articulating screen | |
| Screen dimensions | 3.2" | 3" | Bigger screen (+0.2") |
Reasons to pick Sony RX1R II over the Pentax K-1
| RX1R II | K-1 | |||
|---|---|---|---|---|
| Screen resolution | 1229k | 1037k | Crisper screen (+192k dot) |
Common features in the Pentax K-1 and Sony RX1R II
| K-1 | RX1R II | |||
|---|---|---|---|---|
| Launched | February 2016 | October 2015 | Same age | |
| Focus manually | Very precise focus | |||
| Selfie screen | Lacking selfie screen | |||
| Touch friendly screen | Neither comes with Touch friendly screen |
Pentax K-1 vs Sony RX1R II Physical Comparison
If you're going to carry around your camera, you'll have to factor in its weight and proportions. The Pentax K-1 comes with outside 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) and the Sony RX1R II has measurements of 113mm x 65mm x 72mm (4.4" x 2.6" x 2.8") along with a weight of 507 grams (1.12 lbs).
Examine the Pentax K-1 versus Sony RX1R II in our completely new Camera & Lens Size Comparison Tool.
Don't forget, the weight of an ILC will change dependant on the lens you have attached during that time. Below is a front view proportions comparison of the K-1 compared to the RX1R II.

Considering dimensions and weight, the portability grade of the K-1 and RX1R II is 55 and 78 respectively.
Pentax K-1 vs Sony RX1R II Sensor Comparison
Typically, its tough to envision the gap in sensor sizes simply by researching specs. The pic here might provide you a clearer sense of the sensor measurements in the K-1 and RX1R II.
As you can plainly see, the 2 cameras have the same sensor dimensions albeit not the same resolution. You can count on the Sony RX1R II to result in more detail with its extra 6MP. Higher resolution will allow you to crop pictures a bit more aggressively.
Pentax K-1 vs Sony RX1R II Screen and ViewFinder
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Pentax K-1 vs Sony RX1R II Specifications
| Pentax K-1 | Sony Cyber-shot DSC-RX1R II | |
|---|---|---|
| General Information | ||
| Make | Pentax | Sony |
| Model type | Pentax K-1 | Sony Cyber-shot DSC-RX1R II |
| Category | Advanced DSLR | Large Sensor Compact |
| Released | 2016-02-17 | 2015-10-13 |
| Physical type | Mid-size SLR | Large Sensor Compact |
| Sensor Information | ||
| Processor Chip | - | BIONZ X |
| Sensor type | CMOS | BSI-CMOS |
| Sensor size | Full frame | Full frame |
| Sensor dimensions | 35.9 x 24mm | 35.9 x 24mm |
| Sensor surface area | 861.6mm² | 861.6mm² |
| Sensor resolution | 36MP | 42MP |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 1:1, 4:3, 3:2 and 16:9 |
| Highest resolution | 7360 x 4912 | 7952 x 5304 |
| Highest native ISO | 204800 | 25600 |
| Highest boosted ISO | - | 102400 |
| Min native ISO | 100 | 50 |
| RAW photos | ||
| Autofocusing | ||
| Manual focusing | ||
| Touch focus | ||
| AF continuous | ||
| Single AF | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| Multi area AF | ||
| Live view AF | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 33 | 25 |
| Cross type focus points | 25 | - |
| Lens | ||
| Lens mount type | Pentax KAF2 | fixed lens |
| Lens zoom range | - | 35mm (1x) |
| Largest aperture | - | f/2.0 |
| Macro focusing range | - | 14cm |
| Total lenses | 151 | - |
| Crop factor | 1 | 1 |
| Screen | ||
| Type of display | Fully Articulated | Tilting |
| Display diagonal | 3.2" | 3" |
| Resolution of display | 1,037 thousand dots | 1,229 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch display | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359 thousand dots |
| Viewfinder coverage | 100% | 100% |
| Viewfinder magnification | 0.7x | 0.74x |
| Features | ||
| Slowest shutter speed | 30s | 30s |
| Maximum shutter speed | 1/8000s | 1/4000s |
| Continuous shooting rate | 4.4fps | 5.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manual mode | ||
| Exposure compensation | Yes | Yes |
| Set WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash distance | 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 | Off, auto, fill flash, slow sync, rear sync, wireless |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Maximum flash synchronize | 1/200s | 1/4000s |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | 1920 x 1080 (60p, 60i, 30p, 24p), 1280 x 720 (120p, 30p) |
| Highest video resolution | 1920x1080 | 1920x1080 |
| Video data format | MPEG-4, H.264 | MPEG-4, AVCHD, XAVC S, H.264 |
| Mic 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 proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 1010 grams (2.23 lbs) | 507 grams (1.12 lbs) |
| Physical dimensions | 137 x 110 x 86mm (5.4" x 4.3" x 3.4") | 113 x 65 x 72mm (4.4" x 2.6" x 2.8") |
| DXO scores | ||
| DXO All around rating | 96 | 97 |
| DXO Color Depth rating | 25.4 | 25.8 |
| DXO Dynamic range rating | 14.6 | 13.9 |
| DXO Low light rating | 3280 | 3204 |
| Other | ||
| Battery life | 760 shots | 220 shots |
| Form of battery | Battery Pack | Battery Pack |
| Battery ID | D-LI90 | NP-BX1 |
| Self timer | Yes (2 or 12 sec, custom) | Yes (2,5, 10 sec) |
| Time lapse feature | ||
| Storage type | Dual SD/SDHC/SDXC (UHS-I) | SD/SDHC/SDXC, Memory Stick Pro Duo |
| Card slots | Two | One |
| Pricing at launch | $1,499 | $3,300 |