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Olympus TG-870 vs Pentax K100D S

Portability
91
Imaging
41
Features
46
Overall
43
Olympus Stylus Tough TG-870 front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Olympus TG-870 vs Pentax K100D S Key Specs

Olympus TG-870
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Tilting Display
  • ISO 125 - 6400 (Push to 12800)
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 21-105mm (F3.5-5.7) lens
  • 221g - 113 x 64 x 28mm
  • Announced January 2016
  • Replaced the Olympus TG-860
Pentax K100D S
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 646g - 129 x 91 x 71mm
  • Released June 2007
  • Replaced the Pentax K100D
  • Replacement is Pentax K200D
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Olympus TG-870 vs Pentax K100D S Overview

Let's look more in depth at the Olympus TG-870 versus Pentax K100D S, former being a Ultracompact while the other is a Entry-Level DSLR by manufacturers Olympus and Pentax. There exists a substantial gap among the sensor resolutions of the TG-870 (16MP) and K100D S (6MP) and the TG-870 (1/2.3") and K100D S (APS-C) have totally different sensor dimensions.

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The TG-870 was brought out 8 years later than the K100D S and that is a fairly big difference as far as camera technology is concerned. Both of these cameras feature different body design with the Olympus TG-870 being a Ultracompact camera and the Pentax K100D S being a Compact SLR camera.

Before diving right into a comprehensive comparison, here is a short overview of how the TG-870 scores against the K100D S with respect to portability, imaging, features and an overall grade.

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Reasons to pick Olympus TG-870 over the Pentax K100D S

 TG-870 K100D S 
ReleasedJanuary 2016June 2007More recent by 104 months
Display typeTiltingFixed Tilting display
Display size3"2.5"Larger display (+0.5")
Display resolution921k210kClearer display (+711k dot)

Reasons to pick Pentax K100D S over the Olympus TG-870

 K100D S TG-870 
Manually focus More exact focusing

Common features in the Olympus TG-870 and Pentax K100D S

 TG-870 K100D S 
Selfie screen Neither provides selfie screen
Touch display Neither provides Touch display

Olympus TG-870 vs Pentax K100D S Physical Comparison

If you're aiming to lug around your camera frequently, you're going to have to take into account its weight and size. The Olympus TG-870 provides physical measurements of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") and a weight of 221 grams (0.49 lbs) and the Pentax K100D S has specifications of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs).

Check the Olympus TG-870 versus Pentax K100D S in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will vary depending on the lens you are utilizing at that time. Underneath is a front view proportions comparison of the TG-870 versus the K100D S.

Olympus TG-870 vs Pentax K100D S size comparison

Factoring in dimensions and weight, the portability rating of the TG-870 and K100D S is 91 and 65 respectively.

Olympus TG-870 vs Pentax K100D S top view buttons comparison

Olympus TG-870 vs Pentax K100D S Sensor Comparison

More often than not, it can be tough to envision the difference in sensor measurements only by looking through technical specs. The graphic underneath might offer you a much better sense of the sensor measurements in the TG-870 and K100D S.

As you have seen, the two cameras feature different resolutions and different sensor measurements. The TG-870 due to its smaller sensor will make achieving shallow DOF tougher and the Olympus TG-870 will render more detail having its extra 10MP. Greater resolution will also allow you to crop pics way more aggressively. The more recent TG-870 is going to have an edge in sensor technology.

Olympus TG-870 vs Pentax K100D S sensor size comparison

Olympus TG-870 vs Pentax K100D S Screen and ViewFinder

Olympus TG-870 vs Pentax K100D S Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus TG-870 Portrait photography information
Pentax K100D S Portrait photography information
36
good MP (16MP)
features face detect focusing
no manual focus
manual exposure not possible
cannot use external flash
tiny sensor (1/2.3")
lacks RAW format
51
manual focus
sensor size is nice (APS-C)
saves RAW files
doesn't have liveview
megapixel count low (6 megapixels)
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Street Comparison

Olympus TG-870 Street photography highlights
Pentax K100D S Street photography highlights
65
tilting screen
has image stabilization (Optical)
environment proof
tiny sensor (1/2.3")
lacks RAW format
more heavy than competition (221g)
64
has image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW files
screen is fixed
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Sports Comparison

Olympus TG-870 Sports photography highlights
Pentax K100D S Sports photography highlights
51
has image stabilization (Optical)
good MP (16MP)
features tracking focus
environment proof
great battery (300 per charge)
no shutter priority mode
tiny sensor (1/2.3")
lacks phase detect AF
47
has image stabilization (Sensor based)
sensor size is nice (APS-C)
supports phase detect auto focus
doesn't have liveview
continuous shooting slow (3.0 frames/s)
megapixel count low (6 megapixels)
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Travel Comparison

Olympus TG-870 as a Travel photography camera
Pentax K100D S as a Travel photography camera
69
great battery (300 shots)
environment proof
good MP (16 megapixels)
has built in flash
quite wide (21mm)
more heavy than competition (221 grams)
display isn't selfie friendly
somewhat slow maximum aperture (f3.5)
45
built-in flash
doesn't have Time Lapse mode
megapixel count low (6MP)
doesn't offer selfie friendly display
Photography Glossary

Landscape Comparison

Landscape photography with Olympus TG-870
Landscape photography with Pentax K100D S
50
quite wide (21mm)
nice screen size (3 inch)
has image stabilization (Optical)
good MP (16MP)
environment proof
great battery (300 shots)
no manual focus
lens is fixed (fixed lens mount)
somewhat slow maximum aperture (f3.5)
manual exposure not possible
tiny sensor (1/2.3")
lacks RAW format
52
manual focus
interchangeable lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW files
tiny screen (2.5")
doesn't have liveview
megapixel count low (6MP)
doesn't have Time Lapse mode
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Vlogging Comparison

Vlogging with Olympus TG-870
Vlogging with Pentax K100D S
32
quite wide (21mm)
has image stabilization (Optical)
features face detect focusing
video resolution high (1920 x 1080 pxls)
somewhat slow maximum aperture (f3.5)
display isn't selfie friendly
does not have microphone socket
more heavy than competition (221g)
9
can't shoot video
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Olympus TG-870 vs Pentax K100D S Specifications

Detailed spec comparison table for Olympus TG-870 and Pentax K100D S
 Olympus Stylus Tough TG-870Pentax K100D Super
General Information
Company Olympus Pentax
Model Olympus Stylus Tough TG-870 Pentax K100D Super
Class Ultracompact Entry-Level DSLR
Announced 2016-01-06 2007-06-28
Physical type Ultracompact Compact SLR
Sensor Information
Processor TruePic VII -
Sensor type BSI-CMOS CCD
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 23.5 x 15.7mm
Sensor surface area 28.1mm² 369.0mm²
Sensor resolution 16 megapixel 6 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Maximum resolution 4608 x 3456 3008 x 2008
Maximum native ISO 6400 3200
Maximum boosted ISO 12800 -
Minimum native ISO 125 200
RAW data
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points - 11
Lens
Lens mount fixed lens Pentax KAF2
Lens focal range 21-105mm (5.0x) -
Max aperture f/3.5-5.7 -
Macro focus distance 1cm -
Available lenses - 151
Focal length multiplier 5.8 1.5
Screen
Display type Tilting Fixed Type
Display size 3" 2.5"
Resolution of display 921k dots 210k dots
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type None Optical (pentamirror)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.57x
Features
Slowest shutter speed 4 seconds 30 seconds
Maximum shutter speed 1/2000 seconds 1/4000 seconds
Continuous shooting rate 7.0 frames per sec 3.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Custom white balance
Image stabilization
Built-in flash
Flash range 4.00 m (at ISO 1600) -
Flash modes Auto, redeye reduction, fill flash, off, LED illuminator Auto, On, Off, Red-eye reduction
External flash
AE bracketing
WB bracketing
Maximum flash synchronize - 1/180 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60p), 1280 x 720 (60p), 640 x 480 (60p) -
Maximum video resolution 1920x1080 None
Video file format MPEG-4, H.264 -
Mic port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 221 grams (0.49 lb) 646 grams (1.42 lb)
Physical dimensions 113 x 64 x 28mm (4.4" x 2.5" x 1.1") 129 x 91 x 71mm (5.1" x 3.6" x 2.8")
DXO scores
DXO All around score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 300 pictures -
Type of battery Battery Pack -
Battery model Li-50B 4 x AA
Self timer Yes (2 or 10 sec, custom) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC, Internal SD/SDHC card
Card slots One One
Retail cost $280 $520