Pentax K-3 II vs Sony RX100
59 Imaging
66 Features
84 Overall
73


91 Imaging
50 Features
68 Overall
57
Pentax K-3 II vs Sony RX100 Key Specs
(Full Review)
- 24MP - APS-C Sensor
- 3.2" Fixed Screen
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 800g - 131 x 100 x 77mm
- Released April 2015
- Succeeded the Pentax K-3
(Full Review)
- 20MP - 1" Sensor
- 3" Fixed Screen
- ISO 100 - 25600
- Optical Image Stabilization
- 1920 x 1080 video
- 28-100mm (F1.8-4.9) lens
- 240g - 102 x 58 x 36mm
- Announced August 2012
- Later Model is Sony RX100 II

Pentax K-3 II vs Sony RX100 Overview
Its time to look closer at the Pentax K-3 II and Sony RX100, former is a Advanced DSLR while the latter is a Large Sensor Compact by rivals Pentax and Sony. The image resolution of the K-3 II (24MP) and the RX100 (20MP) is relatively similar but the K-3 II (APS-C) and RX100 (1") use different sensor sizing.

The K-3 II was introduced 2 years after the RX100 which is quite a large difference as far as technology is concerned. The two cameras come with different body type with the Pentax K-3 II being a Mid-size SLR camera and the Sony RX100 being a Large Sensor Compact camera.
Before getting in to a full comparison, below is a brief view of how the K-3 II scores against the RX100 in terms of portability, imaging, features and an overall score.

Pentax K-3 II vs Sony RX100 Gallery
This is a preview of the gallery photos for Pentax K-3 II & Sony Cyber-shot DSC-RX100. The whole galleries are provided at Pentax K-3 II Gallery & Sony RX100 Gallery.
Reasons to pick Pentax K-3 II over the Sony RX100
K-3 II | RX100 | |||
---|---|---|---|---|
Announced | April 2015 | ![]() | August 2012 | More modern by 33 months |
Screen dimension | 3.2" | ![]() | 3" | Bigger screen (+0.2") |
Reasons to pick Sony RX100 over the Pentax K-3 II
RX100 | K-3 II | |||
---|---|---|---|---|
Screen resolution | 1229k | ![]() | 1037k | Sharper screen (+192k dot) |
Common features in the Pentax K-3 II and Sony RX100
K-3 II | RX100 | |||
---|---|---|---|---|
Manual focus | ![]() | More accurate focus | ||
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Selfie screen | ![]() | Neither offers selfie screen | ||
Touch friendly screen | ![]() | No Touch friendly screen |
Pentax K-3 II vs Sony RX100 Physical Comparison
If you are planning to carry around your camera frequently, you'll have to take into account its weight and proportions. The Pentax K-3 II offers outer measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs) and the Sony RX100 has measurements of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") having a weight of 240 grams (0.53 lbs).
Contrast the Pentax K-3 II and Sony RX100 in our brand new Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will vary dependant on the lens you are utilizing during that time. Below is the front view dimension comparison of the K-3 II compared to the RX100.

Using dimensions and weight, the portability score of the K-3 II and RX100 is 59 and 91 respectively.

Pentax K-3 II vs Sony RX100 Sensor Comparison
Quite often, it is very hard to visualize the contrast between sensor sizes only by going over specs. The image below should offer you a far better sense of the sensor sizing in the K-3 II and RX100.
As you can plainly see, the two cameras have got different megapixels and different sensor sizes. The K-3 II having a bigger sensor is going to make shooting shallower depth of field easier and the Pentax K-3 II will offer you extra detail using its extra 4 Megapixels. Higher resolution can also let you crop pictures much more aggressively. The younger K-3 II should have a benefit with regard to sensor technology.

Pentax K-3 II vs Sony RX100 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-3 II vs Sony RX100 Specifications
Pentax K-3 II | Sony Cyber-shot DSC-RX100 | |
---|---|---|
General Information | ||
Company | Pentax | Sony |
Model | Pentax K-3 II | Sony Cyber-shot DSC-RX100 |
Type | Advanced DSLR | Large Sensor Compact |
Released | 2015-04-23 | 2012-08-28 |
Body design | Mid-size SLR | Large Sensor Compact |
Sensor Information | ||
Processor | Prime III | - |
Sensor type | CMOS | CMOS |
Sensor size | APS-C | 1" |
Sensor dimensions | 23.5 x 15.6mm | 13.2 x 8.8mm |
Sensor area | 366.6mm² | 116.2mm² |
Sensor resolution | 24MP | 20MP |
Anti aliasing filter | ||
Aspect ratio | 3:2 | 1:1, 4:3, 3:2 and 16:9 |
Highest resolution | 6016 x 4000 | 5472 x 3648 |
Highest native ISO | 51200 | 25600 |
Min native ISO | 100 | 100 |
RAW files | ||
Autofocusing | ||
Manual focus | ||
Touch to focus | ||
Continuous AF | ||
Single AF | ||
AF tracking | ||
Selective AF | ||
AF center weighted | ||
AF multi area | ||
AF live view | ||
Face detection AF | ||
Contract detection AF | ||
Phase detection AF | ||
Number of focus points | 27 | 25 |
Cross focus points | 25 | - |
Lens | ||
Lens mounting type | Pentax KAF2 | fixed lens |
Lens focal range | - | 28-100mm (3.6x) |
Maximum aperture | - | f/1.8-4.9 |
Macro focus range | - | 5cm |
Available lenses | 151 | - |
Focal length multiplier | 1.5 | 2.7 |
Screen | ||
Screen type | Fixed Type | Fixed Type |
Screen diagonal | 3.2 inches | 3 inches |
Resolution of screen | 1,037 thousand dot | 1,229 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch capability | ||
Screen technology | - | WhiteMagic TFT LCD |
Viewfinder Information | ||
Viewfinder type | Optical (pentaprism) | None |
Viewfinder coverage | 100% | - |
Viewfinder magnification | 0.64x | - |
Features | ||
Slowest shutter speed | 30s | 30s |
Maximum shutter speed | 1/8000s | 1/2000s |
Continuous shooting speed | 8.3fps | 10.0fps |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | Yes | Yes |
Set WB | ||
Image stabilization | ||
Inbuilt flash | ||
Flash range | no built-in flash | - |
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 (available with dedicated external flash) | Auto, On, Off, Slow Sync |
External flash | ||
AEB | ||
White balance bracketing | ||
Maximum flash sync | 1/180s | 1/2000s |
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, 30p, 25p, 24p) | 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) |
Highest video resolution | 1920x1080 | 1920x1080 |
Video format | MPEG-4, H.264 | MPEG-4, AVCHD |
Mic jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | Optional | Eye-Fi Connected |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.0 (5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | BuiltIn | None |
Physical | ||
Environmental seal | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 800 grams (1.76 pounds) | 240 grams (0.53 pounds) |
Dimensions | 131 x 100 x 77mm (5.2" x 3.9" x 3.0") | 102 x 58 x 36mm (4.0" x 2.3" x 1.4") |
DXO scores | ||
DXO All around score | 80 | 66 |
DXO Color Depth score | 23.6 | 22.6 |
DXO Dynamic range score | 13.6 | 12.4 |
DXO Low light score | 1106 | 390 |
Other | ||
Battery life | 720 photographs | 330 photographs |
Style of battery | Battery Pack | Battery Pack |
Battery model | D-LI90 | NP-BX1 |
Self timer | Yes ( 2 or 12 seconds) | Yes (2 or 10 sec, Portrait 1/2) |
Time lapse shooting | With downloadable app | |
Type of storage | Dual SD/SDHC/SDXC | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
Storage slots | Two | 1 |
Launch cost | $829 | $448 |