Olympus TG-870 vs Pentax K-S2
91 Imaging
40 Features
46 Overall
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64 Imaging
63 Features
82 Overall
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Olympus TG-870 vs Pentax K-S2 Key Specs
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Tilting Screen
- ISO 125 - 6400 (Boost to 12800)
- Optical Image Stabilization
- 1920 x 1080 video
- 21-105mm (F3.5-5.7) lens
- 221g - 113 x 64 x 28mm
- Introduced January 2016
- Older Model is Olympus TG-860
(Full Review)
- 20MP - APS-C Sensor
- 3" Fully Articulated Display
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/6000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 678g - 123 x 91 x 73mm
- Launched February 2015
- Older Model is Pentax K-S1
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Its time to look much closer at the Olympus TG-870 and Pentax K-S2, former being a Ultracompact while the other is a Entry-Level DSLR by competitors Olympus and Pentax. The resolution of the TG-870 (16MP) and the K-S2 (20MP) is very comparable but the TG-870 (1/2.3") and K-S2 (APS-C) posses totally different sensor sizing.
Photobucket discusses licensing 13 billion images with AI firmsThe TG-870 was released 11 months later than the K-S2 so they are both of a similar age. The two cameras feature different body design with the Olympus TG-870 being a Ultracompact camera and the Pentax K-S2 being a Compact SLR camera.
Before going right into a more detailed comparison, here is a quick summary of how the TG-870 matches up vs the K-S2 when considering portability, imaging, features and an overall rating.
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The following is a sample of the gallery pics for Olympus Stylus Tough TG-870 & Pentax K-S2. The complete galleries are viewable at Olympus TG-870 Gallery & Pentax K-S2 Gallery.
Reasons to pick Olympus TG-870 over the Pentax K-S2
| TG-870 | K-S2 | |||
|---|---|---|---|---|
| Launched | January 2016 | February 2015 | Fresher by 11 months |
Reasons to pick Pentax K-S2 over the Olympus TG-870
| K-S2 | TG-870 | |||
|---|---|---|---|---|
| Manually focus | Dial precise focusing | |||
| Display type | Fully Articulated | Tilting | Fully Articulating display | |
| Selfie screen | Take selfies |
Common features in the Olympus TG-870 and Pentax K-S2
| TG-870 | K-S2 | |||
|---|---|---|---|---|
| Display size | 3" | 3" | Same display measurement | |
| Display resolution | 921k | 921k | Same display resolution | |
| Touch display | Lacking Touch display |
Olympus TG-870 vs Pentax K-S2 Physical Comparison
For anybody who is looking to carry your camera frequently, you are going to need to take into account its weight and volume. The Olympus TG-870 has got exterior dimensions of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") having a weight of 221 grams (0.49 lbs) and the Pentax K-S2 has sizing of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") and a weight of 678 grams (1.49 lbs).
Take a look at the Olympus TG-870 and Pentax K-S2 in our newest Camera & Lens Size Comparison Tool.
Take into account, the weight of an ILC will vary dependant on the lens you select at the time. The following is a front view over all size comparison of the TG-870 versus the K-S2.

Taking into consideration dimensions and weight, the portability grade of the TG-870 and K-S2 is 91 and 64 respectively.
Olympus TG-870 vs Pentax K-S2 Sensor Comparison
Sometimes, it can be hard to visualise the difference in sensor sizing just by checking out technical specs. The photograph here may give you a more clear sense of the sensor dimensions in the TG-870 and K-S2.
As you can tell, each of the cameras feature different megapixels and different sensor sizing. The TG-870 due to its smaller sensor will make getting bokeh tougher and the Pentax K-S2 will show extra detail as a result of its extra 4 Megapixels. Greater resolution can also let you crop photos way more aggressively. The more recent TG-870 is going to have an advantage with regard to sensor innovation.
Olympus TG-870 vs Pentax K-S2 Screen and ViewFinder
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Olympus TG-870 vs Pentax K-S2 Specifications
| Olympus Stylus Tough TG-870 | Pentax K-S2 | |
|---|---|---|
| General Information | ||
| Manufacturer | Olympus | Pentax |
| Model type | Olympus Stylus Tough TG-870 | Pentax K-S2 |
| Category | Ultracompact | Entry-Level DSLR |
| Introduced | 2016-01-06 | 2015-02-10 |
| Physical type | Ultracompact | Compact SLR |
| Sensor Information | ||
| Powered by | TruePic VII | PRIME MII |
| 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 | 20 megapixels |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 |
| Highest Possible resolution | 4608 x 3456 | 5472 x 3648 |
| Maximum native ISO | 6400 | 51200 |
| Maximum enhanced ISO | 12800 | - |
| Min native ISO | 125 | 100 |
| RAW files | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Autofocus tracking | ||
| Autofocus selectice | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detection autofocus | ||
| Contract detection autofocus | ||
| Phase detection autofocus | ||
| Total focus points | - | 11 |
| Lens | ||
| Lens support | fixed lens | Pentax KAF2 |
| Lens zoom range | 21-105mm (5.0x) | - |
| Maximum aperture | f/3.5-5.7 | - |
| Macro focusing distance | 1cm | - |
| Number of lenses | - | 151 |
| Crop factor | 5.8 | 1.5 |
| Screen | ||
| Screen type | Tilting | Fully Articulated |
| Screen size | 3" | 3" |
| Resolution of screen | 921k dots | 921k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch function | ||
| Viewfinder Information | ||
| Viewfinder | None | Optical (pentaprism) |
| Viewfinder coverage | - | 100 percent |
| Viewfinder magnification | - | 0.64x |
| Features | ||
| Minimum shutter speed | 4s | 30s |
| Fastest shutter speed | 1/2000s | 1/6000s |
| Continuous shutter rate | 7.0 frames/s | 5.4 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manual mode | ||
| Exposure compensation | - | Yes |
| Set white balance | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash distance | 4.00 m (at ISO 1600) | 12.00 m (at ISO 100) |
| Flash settings | Auto, redeye reduction, fill flash, off, LED illuminator | Auto, auto w/redeye reduction, flash on, flash on + redeye reduction, slow sync, trailing curtain sync, manual flash |
| External flash | ||
| AE bracketing | ||
| WB bracketing | ||
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60p), 1280 x 720 (60p), 640 x 480 (60p) | 1920 x 1080 (30p, 25p, 24p), 1280 x 720 (60p, 50p) |
| Maximum video resolution | 1920x1080 | 1920x1080 |
| Video data format | MPEG-4, H.264 | MPEG-4, 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 | BuiltIn | Optional |
| Physical | ||
| Environment sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 221g (0.49 lb) | 678g (1.49 lb) |
| Physical dimensions | 113 x 64 x 28mm (4.4" x 2.5" x 1.1") | 123 x 91 x 73mm (4.8" x 3.6" x 2.9") |
| DXO scores | ||
| DXO Overall rating | not tested | not tested |
| DXO Color Depth rating | not tested | not tested |
| DXO Dynamic range rating | not tested | not tested |
| DXO Low light rating | not tested | not tested |
| Other | ||
| Battery life | 300 shots | 410 shots |
| Style of battery | Battery Pack | Battery Pack |
| Battery ID | Li-50B | D-LI109 |
| Self timer | Yes (2 or 10 sec, custom) | Yes (2 or 12 secs) |
| Time lapse recording | ||
| Type of storage | SD/SDHC/SDXC, Internal | SD/SDHC/SDXC |
| Card slots | Single | Single |
| Launch pricing | $280 | $581 |