Olympus SZ-31MR iHS vs Pentax K-3 II
89 Imaging
39 Features
47 Overall
42


59 Imaging
66 Features
84 Overall
73
Olympus SZ-31MR iHS vs Pentax K-3 II Key Specs
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Display
- ISO 80 - 6400
- Sensor-shift Image Stabilization
- 1920 x 1080 video
- 25-600mm (F3.0-6.9) lens
- 226g - 106 x 69 x 40mm
- Announced February 2012
(Full Review)
- 24MP - APS-C Sensor
- 3.2" Fixed Screen
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 800g - 131 x 100 x 77mm
- Revealed April 2015
- Succeeded the Pentax K-3

Olympus SZ-31MR iHS vs Pentax K-3 II Overview
On this page, we will be reviewing the Olympus SZ-31MR iHS vs Pentax K-3 II, one being a Small Sensor Superzoom and the latter is a Advanced DSLR by rivals Olympus and Pentax. There is a huge difference among the image resolutions of the SZ-31MR iHS (16MP) and K-3 II (24MP) and the SZ-31MR iHS (1/2.3") and K-3 II (APS-C) offer different sensor measurements.

The SZ-31MR iHS was unveiled 4 years earlier than the K-3 II and that is a fairly significant gap as far as camera tech is concerned. Both of the cameras have different body design with the Olympus SZ-31MR iHS being a Compact camera and the Pentax K-3 II being a Mid-size SLR camera.
Before diving straight to a in-depth comparison, here is a concise summation of how the SZ-31MR iHS scores against the K-3 II with respect to portability, imaging, features and an overall rating.

Olympus SZ-31MR iHS vs Pentax K-3 II Gallery
Below is a preview of the gallery photos for Olympus SZ-31MR iHS and Pentax K-3 II. The full galleries are provided at Olympus SZ-31MR iHS Gallery and Pentax K-3 II Gallery.
Reasons to pick Olympus SZ-31MR iHS over the Pentax K-3 II
SZ-31MR iHS | K-3 II | |||
---|---|---|---|---|
Touch friendly screen | ![]() | Quickly navigate |
Reasons to pick Pentax K-3 II over the Olympus SZ-31MR iHS
K-3 II | SZ-31MR iHS | |||
---|---|---|---|---|
Revealed | April 2015 | ![]() | February 2012 | Fresher by 39 months |
Manual focus | ![]() | Dial precise focus | ||
Screen dimensions | 3.2" | ![]() | 3" | Bigger screen (+0.2") |
Screen resolution | 1037k | ![]() | 920k | Sharper screen (+117k dot) |
Common features in the Olympus SZ-31MR iHS and Pentax K-3 II
SZ-31MR iHS | K-3 II | |||
---|---|---|---|---|
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Selfie screen | ![]() | Absent selfie screen |
Olympus SZ-31MR iHS vs Pentax K-3 II Physical Comparison
In case you're planning to carry your camera often, you are going to need to consider its weight and dimensions. The Olympus SZ-31MR iHS offers outside measurements of 106mm x 69mm x 40mm (4.2" x 2.7" x 1.6") along with a weight of 226 grams (0.50 lbs) while the Pentax K-3 II has dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs).
See the Olympus SZ-31MR iHS vs Pentax K-3 II in the all new Camera with Lens Size Comparison Tool.
Remember, the weight of an Interchangeable Lens Camera will change depending on the lens you are utilizing during that time. The following is a front view measurement comparison of the SZ-31MR iHS and the K-3 II.

Factoring in size and weight, the portability score of the SZ-31MR iHS and K-3 II is 89 and 59 respectively.

Olympus SZ-31MR iHS vs Pentax K-3 II Sensor Comparison
Often, it's hard to imagine the gap in sensor sizing only by researching a spec sheet. The visual below should offer you a much better sense of the sensor measurements in the SZ-31MR iHS and K-3 II.
Clearly, both the cameras have different megapixels and different sensor sizing. The SZ-31MR iHS with its smaller sensor is going to make achieving shallower depth of field more challenging and the Pentax K-3 II will render more detail having an extra 8 Megapixels. Higher resolution will make it easier to crop pictures a bit more aggressively. The older SZ-31MR iHS will be behind when it comes to sensor technology.

Olympus SZ-31MR iHS vs Pentax K-3 II Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Olympus SZ-31MR iHS vs Pentax K-3 II Specifications
Olympus SZ-31MR iHS | Pentax K-3 II | |
---|---|---|
General Information | ||
Company | Olympus | Pentax |
Model | Olympus SZ-31MR iHS | Pentax K-3 II |
Class | Small Sensor Superzoom | Advanced DSLR |
Announced | 2012-02-08 | 2015-04-23 |
Body design | Compact | Mid-size SLR |
Sensor Information | ||
Powered by | Dual TruePic V | Prime III |
Sensor type | BSI-CMOS | CMOS |
Sensor size | 1/2.3" | APS-C |
Sensor dimensions | 6.17 x 4.55mm | 23.5 x 15.6mm |
Sensor area | 28.1mm² | 366.6mm² |
Sensor resolution | 16 megapixels | 24 megapixels |
Anti aliasing filter | ||
Aspect ratio | 4:3 and 16:9 | 3:2 |
Highest Possible resolution | 4608 x 3456 | 6016 x 4000 |
Maximum native ISO | 6400 | 51200 |
Minimum native ISO | 80 | 100 |
RAW pictures | ||
Autofocusing | ||
Manual focus | ||
AF touch | ||
AF continuous | ||
AF single | ||
AF tracking | ||
Selective AF | ||
Center weighted AF | ||
Multi area AF | ||
AF live view | ||
Face detect AF | ||
Contract detect AF | ||
Phase detect AF | ||
Number of focus points | - | 27 |
Cross focus points | - | 25 |
Lens | ||
Lens mount | fixed lens | Pentax KAF2 |
Lens focal range | 25-600mm (24.0x) | - |
Max aperture | f/3.0-6.9 | - |
Macro focus distance | 1cm | - |
Number of lenses | - | 151 |
Focal length multiplier | 5.8 | 1.5 |
Screen | ||
Range of display | Fixed Type | Fixed Type |
Display size | 3" | 3.2" |
Display resolution | 920 thousand dot | 1,037 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Display technology | Hypercrystal III TFT Color LCD | - |
Viewfinder Information | ||
Viewfinder | None | Optical (pentaprism) |
Viewfinder coverage | - | 100% |
Viewfinder magnification | - | 0.64x |
Features | ||
Min shutter speed | 4 secs | 30 secs |
Max shutter speed | 1/1700 secs | 1/8000 secs |
Continuous shutter speed | 7.0fps | 8.3fps |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | - | Yes |
Custom WB | ||
Image stabilization | ||
Integrated flash | ||
Flash range | 9.30 m | no built-in flash |
Flash modes | Auto, On, Off, Red-Eye, Fill-in | 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) |
Hot shoe | ||
AEB | ||
WB bracketing | ||
Max flash sync | - | 1/180 secs |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Supported video resolutions | 1920 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 180 (30fps) | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) |
Maximum video resolution | 1920x1080 | 1920x1080 |
Video file format | MPEG-4, H.264 | MPEG-4, H.264 |
Mic jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | Eye-Fi Connected | Optional |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 3.0 (5 GBit/sec) |
GPS | None | BuiltIn |
Physical | ||
Environmental seal | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 226 gr (0.50 lb) | 800 gr (1.76 lb) |
Physical dimensions | 106 x 69 x 40mm (4.2" x 2.7" x 1.6") | 131 x 100 x 77mm (5.2" x 3.9" x 3.0") |
DXO scores | ||
DXO Overall score | not tested | 80 |
DXO Color Depth score | not tested | 23.6 |
DXO Dynamic range score | not tested | 13.6 |
DXO Low light score | not tested | 1106 |
Other | ||
Battery life | 200 images | 720 images |
Battery form | Battery Pack | Battery Pack |
Battery model | LI-50B | D-LI90 |
Self timer | Yes (2 or 12 sec, pet auto shutter) | Yes ( 2 or 12 seconds) |
Time lapse feature | ||
Storage media | SD/SDHC/SDXC | Dual SD/SDHC/SDXC |
Storage slots | Single | 2 |
Retail cost | $0 | $829 |