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Olympus TG-870 vs Pentax K-S2

Portability
91
Imaging
41
Features
46
Overall
43
Olympus Stylus Tough TG-870 front
 
Pentax K-S2 front
Portability
64
Imaging
64
Features
82
Overall
71

Olympus TG-870 vs Pentax K-S2 Key Specs

Olympus TG-870
(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
Pentax K-S2
(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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Olympus TG-870 vs Pentax K-S2 Overview

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.

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The 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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Reasons to pick Olympus TG-870 over the Pentax K-S2

 TG-870 K-S2 
LaunchedJanuary 2016February 2015Fresher by 11 months

Reasons to pick Pentax K-S2 over the Olympus TG-870

 K-S2 TG-870 
Manually focus Dial precise focusing
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Take selfies

Common features in the Olympus TG-870 and Pentax K-S2

 TG-870 K-S2 
Display size3"3"Same display measurement
Display resolution921k921kSame 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. Camera Size Comparison with Lenses

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.

Olympus TG-870 vs Pentax K-S2 size comparison

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 top view buttons comparison

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 sensor size comparison

Olympus TG-870 vs Pentax K-S2 Screen and ViewFinder

Olympus TG-870 vs Pentax K-S2 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus TG-870 Portrait photography advice
Pentax K-S2 Portrait photography advice
36
good megapixels (16 megapixels)
has face detect focusing
no manual focus
no manual control
cannot use external flash
small sensor size (1/2.3")
has no RAW support
78
manual focus
sensor resolution is decent (20MP)
sensor size is decent (APS-C)
features face detection focus
delivers RAW formats
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Street Comparison

Olympus TG-870 Street photography highlights
Pentax K-S2 Street photography highlights
65
has a tilting screen
image stabilization (Optical)
environment sealing
small sensor size (1/2.3")
has no RAW support
more heavy than competition in class (221g)
72
screen articulates fully
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW formats
weather proof
above average high ISO (51,200)
heavier than average (678g)
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Sports Comparison

Olympus TG-870 Sports photography advice
Pentax K-S2 Sports photography advice
51
image stabilization (Optical)
good megapixels (16 megapixels)
has tracking focus
environment sealing
great battery life (300 per charge)
no shutter priority mode
small sensor size (1/2.3")
has no phase detect AF
70
maximum shutter speed is high (1/6,000s)
built in image stabilization (Sensor based)
sensor resolution is decent (20 megapixels)
sensor size is decent (APS-C)
features tracking autofocus
weather proof
supports phase detect auto focus
slow frames per second (5.4 frames/s)
low battery life (410 per charge)
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Travel Comparison

Olympus TG-870 Travel photography advice
Pentax K-S2 Travel photography advice
69
great battery life (300 CIPA)
environment sealing
good megapixels (16 megapixels)
built-in flash
fairly wide (21mm)
more heavy than competition in class (221 grams)
display isn't selfie friendly
somewhat slow max aperture (f3.5)
65
weather proof
sensor resolution is decent (20 megapixels)
has built in flash
screen is selfie friendly
low battery life (410 CIPA)
heavier than average (678g)
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Landscape Comparison

Olympus TG-870 Landscape photography highlights
Pentax K-S2 Landscape photography highlights
50
fairly wide (21mm)
screen size is good (3")
image stabilization (Optical)
good megapixels (16MP)
environment sealing
great battery life (300 shots)
no manual focus
cannot swap lens (fixed lens mount)
somewhat slow max aperture (f3.5)
no manual control
small sensor size (1/2.3")
has no RAW support
77
manual focus
change lenses (Pentax KAF2 mount)
pretty good screen size (3 inch)
built in image stabilization (Sensor based)
sensor resolution is decent (20 megapixels)
sensor size is decent (APS-C)
no anti-alias filter
above average high ISO (51,200)
delivers RAW formats
weather proof
low battery life (410 per charge)
Photography Glossary

Vlogging Comparison

Olympus TG-870 Vlogging factors
Pentax K-S2 Vlogging factors
32
fairly wide (21mm)
image stabilization (Optical)
has face detect focusing
high res video (1920 x 1080 resolution)
somewhat slow max aperture (f3.5)
display isn't selfie friendly
no microphone jack
more heavy than competition in class (221g)
71
screen is selfie friendly
built in image stabilization (Sensor based)
features face detection focus
great video quality (1920 x 1080 pxls)
comes with external mic socket
heavier than average (678 grams)
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Olympus TG-870 vs Pentax K-S2 Specifications

Detailed spec comparison table for Olympus TG-870 and Pentax K-S2
 Olympus Stylus Tough TG-870Pentax 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