Olympus SZ-31MR iHS vs Pentax K-3
89 Imaging
39 Features
47 Overall
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59 Imaging
64 Features
85 Overall
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Olympus SZ-31MR iHS vs Pentax K-3 Key Specs
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Screen
- 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 Display
- 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 2014
- Newer Model is Pentax K-3 II
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Lets look more closely at the Olympus SZ-31MR iHS vs Pentax K-3, former being a Small Sensor Superzoom while the other is a Advanced DSLR by manufacturers Olympus and Pentax. There exists a substantial gap between the image resolutions of the SZ-31MR iHS (16MP) and K-3 (24MP) and the SZ-31MR iHS (1/2.3") and K-3 (APS-C) have different sensor sizes.
Meta to Introduce 'AI-Generated' Labels for Media starting next monthThe SZ-31MR iHS was revealed 3 years earlier than the K-3 and that is quite a big difference as far as technology is concerned. Both cameras feature different body design with the Olympus SZ-31MR iHS being a Compact camera and the Pentax K-3 being a Mid-size SLR camera.
Before diving straight to a comprehensive comparison, here is a concise view of how the SZ-31MR iHS scores against the K-3 in the way of portability, imaging, features and an overall rating.
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Below is a sample of the gallery pics for Olympus SZ-31MR iHS & Pentax K-3. The full galleries are provided at Olympus SZ-31MR iHS Gallery & Pentax K-3 Gallery.
Reasons to pick Olympus SZ-31MR iHS over the Pentax K-3
| SZ-31MR iHS | K-3 | |||
|---|---|---|---|---|
| Touch friendly display | Easily navigate |
Reasons to pick Pentax K-3 over the Olympus SZ-31MR iHS
| K-3 | SZ-31MR iHS | |||
|---|---|---|---|---|
| Released | April 2014 | February 2012 | Fresher by 26 months | |
| Focus manually | Very accurate focus | |||
| Display size | 3.2" | 3" | Larger display (+0.2") | |
| Display resolution | 1037k | 920k | Sharper display (+117k dot) |
Common features in the Olympus SZ-31MR iHS and Pentax K-3
| SZ-31MR iHS | K-3 | |||
|---|---|---|---|---|
| Display type | Fixed | Fixed | Fixed display | |
| Selfie screen | Neither offers selfie screen |
Olympus SZ-31MR iHS vs Pentax K-3 Physical Comparison
For anyone who is going to carry your camera regularly, you will need to factor its weight and volume. The Olympus SZ-31MR iHS offers exterior dimensions of 106mm x 69mm x 40mm (4.2" x 2.7" x 1.6") accompanied by a weight of 226 grams (0.50 lbs) whilst the Pentax K-3 has sizing of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs).
Analyze the Olympus SZ-31MR iHS vs Pentax K-3 in our newest Camera plus Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will differ dependant on the lens you use at the time. Below is a front view over all size comparison of the SZ-31MR iHS vs the K-3.

Looking at dimensions and weight, the portability rating of the SZ-31MR iHS and K-3 is 89 and 59 respectively.
Olympus SZ-31MR iHS vs Pentax K-3 Sensor Comparison
More often than not, it is difficult to imagine the difference between sensor sizing purely by reviewing specs. The graphic underneath might offer you a stronger sense of the sensor dimensions in the SZ-31MR iHS and K-3.
All in all, both of the cameras feature different megapixels and different sensor sizing. The SZ-31MR iHS with its tinier sensor is going to make getting shallow depth of field more difficult and the Pentax K-3 will offer greater detail because of its extra 8 Megapixels. Greater resolution will allow you to crop pics way more aggressively. The older SZ-31MR iHS is going to be disadvantaged in sensor tech.
Olympus SZ-31MR iHS vs Pentax K-3 Screen and ViewFinder
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Olympus SZ-31MR iHS vs Pentax K-3 Specifications
| Olympus SZ-31MR iHS | Pentax K-3 | |
|---|---|---|
| General Information | ||
| Manufacturer | Olympus | Pentax |
| Model type | Olympus SZ-31MR iHS | Pentax K-3 |
| Type | Small Sensor Superzoom | Advanced DSLR |
| Announced | 2012-02-08 | 2014-04-10 |
| Body design | Compact | Mid-size SLR |
| Sensor Information | ||
| Processor | 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 surface area | 28.1mm² | 366.6mm² |
| Sensor resolution | 16 megapixel | 24 megapixel |
| Anti alias filter | ||
| Aspect ratio | 4:3 and 16:9 | 3:2 |
| Peak resolution | 4608 x 3456 | 6016 x 4000 |
| Highest native ISO | 6400 | 51200 |
| Min native ISO | 80 | 100 |
| RAW data | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| AF continuous | ||
| Single AF | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| Multi area AF | ||
| Live view AF | ||
| Face detection AF | ||
| Contract detection AF | ||
| Phase detection AF | ||
| Total focus points | - | 27 |
| Cross type focus points | - | 25 |
| Lens | ||
| Lens mount type | fixed lens | Pentax KAF2 |
| Lens zoom range | 25-600mm (24.0x) | - |
| Maximal aperture | f/3.0-6.9 | - |
| Macro focusing distance | 1cm | - |
| Available lenses | - | 151 |
| Crop factor | 5.8 | 1.5 |
| Screen | ||
| Screen type | Fixed Type | Fixed Type |
| Screen diagonal | 3 inch | 3.2 inch |
| Resolution of screen | 920k dot | 1,037k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch friendly | ||
| Screen technology | Hypercrystal III TFT Color LCD | TFT LCD monitor |
| Viewfinder Information | ||
| Viewfinder | None | Optical (pentaprism) |
| Viewfinder coverage | - | 100 percent |
| Viewfinder magnification | - | 0.64x |
| Features | ||
| Min shutter speed | 4s | 30s |
| Max shutter speed | 1/1700s | 1/8000s |
| Continuous shutter speed | 7.0 frames per second | 8.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | - | Yes |
| Custom WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 9.30 m | 13.00 m (at ISO 100) |
| Flash settings | Auto, On, Off, Red-Eye, Fill-in | Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual |
| Hot shoe | ||
| Auto exposure bracketing | ||
| WB bracketing | ||
| Max flash sync | - | 1/180s |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| 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) |
| Highest video resolution | 1920x1080 | 1920x1080 |
| Video file format | MPEG-4, H.264 | MPEG-4, H.264 |
| Mic input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 3.0 (5 GBit/sec) |
| GPS | None | Optional |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| 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 rating | not tested | 80 |
| DXO Color Depth rating | not tested | 23.7 |
| DXO Dynamic range rating | not tested | 13.4 |
| DXO Low light rating | not tested | 1216 |
| Other | ||
| Battery life | 200 images | 560 images |
| Battery format | Battery Pack | Battery Pack |
| Battery ID | LI-50B | D-LI90 |
| Self timer | Yes (2 or 12 sec, pet auto shutter) | Yes ( 2 or 12 seconds) |
| Time lapse shooting | ||
| Type of storage | SD/SDHC/SDXC | Dual SD/SDHC/SDXC |
| Storage slots | Single | Dual |
| Pricing at release | $0 | $639 |