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Olympus TG-310 vs Pentax K100D S

Portability
94
Imaging
37
Features
33
Overall
35
Olympus TG-310 front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Olympus TG-310 vs Pentax K100D S Key Specs

Olympus TG-310
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 80 - 1600
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-102mm (F3.9-5.9) lens
  • 155g - 96 x 63 x 23mm
  • Released January 2011
Pentax K100D S
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 646g - 129 x 91 x 71mm
  • Announced June 2007
  • Earlier Model is Pentax K100D
  • Refreshed by Pentax K200D
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Olympus TG-310 vs Pentax K100D S Overview

Let's examine more in depth at the Olympus TG-310 versus Pentax K100D S, one being a Waterproof and the latter is a Entry-Level DSLR by brands Olympus and Pentax. There is a huge difference among the image resolutions of the TG-310 (14MP) and K100D S (6MP) and the TG-310 (1/2.3") and K100D S (APS-C) feature different sensor sizes.

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The TG-310 was unveiled 3 years later than the K100D S and that is a fairly significant gap as far as camera tech is concerned. Each of the cameras offer different body type with the Olympus TG-310 being a Compact camera and the Pentax K100D S being a Compact SLR camera.

Before diving straight into a in depth comparison, below is a short summary of how the TG-310 scores versus the K100D S in regards to portability, imaging, features and an overall grade.

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Reasons to pick Olympus TG-310 over the Pentax K100D S

 TG-310 K100D S 
AnnouncedJanuary 2011June 2007More recent by 43 months
Screen sizing2.7"2.5"Bigger screen (+0.2")
Screen resolution230k210kSharper screen (+20k dot)

Reasons to pick Pentax K100D S over the Olympus TG-310

 K100D S TG-310 
Manual focus Very accurate focus

Common features in the Olympus TG-310 and Pentax K100D S

 TG-310 K100D S 
Screen typeFixed Fixed Fixed screen
Selfie screen Neither offers selfie screen
Touch screen Neither offers Touch screen

Olympus TG-310 vs Pentax K100D S Physical Comparison

For those who are going to lug around your camera frequently, you need to consider its weight and measurements. The Olympus TG-310 offers outside dimensions of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") accompanied by a weight of 155 grams (0.34 lbs) whilst the Pentax K100D S has proportions of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs).

Examine the Olympus TG-310 versus Pentax K100D S in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilising during that time. Underneath is the front view dimensions comparison of the TG-310 against the K100D S.

Olympus TG-310 vs Pentax K100D S size comparison

Considering size and weight, the portability rating of the TG-310 and K100D S is 94 and 65 respectively.

Olympus TG-310 vs Pentax K100D S top view buttons comparison

Olympus TG-310 vs Pentax K100D S Sensor Comparison

Generally, it's difficult to imagine the gap in sensor measurements only by checking out technical specs. The graphic below should provide you a stronger sense of the sensor sizes in the TG-310 and K100D S.

As you can tell, each of the cameras offer different megapixels and different sensor measurements. The TG-310 using its smaller sensor is going to make shooting shallower depth of field more difficult and the Olympus TG-310 will produce extra detail having an extra 8 Megapixels. Higher resolution will also let you crop shots a little more aggressively. The fresher TG-310 should have a benefit when it comes to sensor tech.

Olympus TG-310 vs Pentax K100D S sensor size comparison

Olympus TG-310 vs Pentax K100D S Screen and ViewFinder

Olympus TG-310 vs Pentax K100D S Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus TG-310
Portrait photography with Pentax K100D S
33
sensor resolution is decent (14MP)
supports face detection focusing
no manual focus
no manual control
can't use external flash
very small sensor size (1/2.3")
lacks RAW format
51
manual focus
sensor size is good (APS-C)
saves RAW files
no liveview
MP count low (6 megapixels)
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Street Comparison

Olympus TG-310 Street photography information
Pentax K100D S Street photography information
66
has image stabilization (Sensor-shift)
environment proof
lighter than others (155 grams)
screen does not articulate
very small sensor size (1/2.3")
lacks RAW format
64
built in image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW files
screen is fixed
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Sports Comparison

Olympus TG-310 Sports photography information
Pentax K100D S Sports photography information
40
has image stabilization (Sensor-shift)
sensor resolution is decent (14 megapixels)
supports tracking autofocus
environment proof
continuous shooting slow (1.0 frames per second)
no shutter priority mode
very small sensor size (1/2.3")
low battery pack (150 per charge)
lacks phase detect AF
47
built in image stabilization (Sensor based)
sensor size is good (APS-C)
comes with phase detect autofocus
no liveview
painfully slow continuous shooting (3.0 fps)
MP count low (6MP)
Photography Glossary

Travel Comparison

Olympus TG-310 as a Travel photography camera
Pentax K100D S as a Travel photography camera
67
lighter than others (155 grams)
environment proof
sensor resolution is decent (14MP)
flash built-in
rather wide (28mm)
lack of Time Lapse mode
low battery pack (150 shots)
does not have selfie friendly screen
somewhat slow maximum aperture (f3.9)
45
built-in flash
lack of Time Lapse function
MP count low (6 megapixels)
doesn't posses selfie friendly display
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Landscape Comparison

Olympus TG-310 Landscape photography info
Pentax K100D S Landscape photography info
39
rather wide (28mm)
has image stabilization (Sensor-shift)
sensor resolution is decent (14 megapixels)
environment proof
no manual focus
lens is fixed (fixed lens mount)
somewhat slow maximum aperture (f3.9)
screen is somewhat small (2.7")
no manual control
very small sensor size (1/2.3")
lacks RAW format
low battery pack (150 per charge)
lack of Time Lapse mode
52
manual focus
interchangeable lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW files
screen is somewhat small (2.5 inches)
no liveview
MP count low (6 megapixels)
lack of Time Lapse function
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Vlogging Comparison

Olympus TG-310 Vlogging details
Pentax K100D S Vlogging details
32
rather wide (28mm)
has image stabilization (Sensor-shift)
supports face detection focusing
lighter than others (155g)
somewhat slow maximum aperture (f3.9)
does not have selfie friendly screen
low quality video (1280 x 720 pixels)
lack of external mic port
9
can't shoot video
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Olympus TG-310 vs Pentax K100D S Specifications

Detailed spec comparison table for Olympus TG-310 and Pentax K100D S
 Olympus TG-310Pentax K100D Super
General Information
Manufacturer Olympus Pentax
Model Olympus TG-310 Pentax K100D Super
Class Waterproof Entry-Level DSLR
Released 2011-01-06 2007-06-28
Physical type Compact Compact SLR
Sensor Information
Processor TruePic III+ -
Sensor type CCD CCD
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 23.5 x 15.7mm
Sensor area 28.1mm² 369.0mm²
Sensor resolution 14MP 6MP
Anti aliasing filter
Aspect ratio - 3:2
Maximum resolution 4288 x 3216 3008 x 2008
Maximum native ISO 1600 3200
Min native ISO 80 200
RAW data
Autofocusing
Manual focus
Touch focus
AF continuous
Single AF
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points - 11
Cross focus points - -
Lens
Lens mount fixed lens Pentax KAF2
Lens focal range 28-102mm (3.6x) -
Max aperture f/3.9-5.9 -
Macro focus distance 3cm -
Available lenses - 151
Crop factor 5.8 1.5
Screen
Display type Fixed Type Fixed Type
Display size 2.7" 2.5"
Display resolution 230k dots 210k dots
Selfie friendly
Liveview
Touch screen
Display technology TFT Color LCD -
Viewfinder Information
Viewfinder None Optical (pentamirror)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.57x
Features
Slowest shutter speed 4 secs 30 secs
Maximum shutter speed 1/2000 secs 1/4000 secs
Continuous shooting rate 1.0 frames per second 3.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Change WB
Image stabilization
Inbuilt flash
Flash range 4.20 m -
Flash modes Auto, On, Off, Red-Eye, Fill-in Auto, On, Off, Red-eye reduction
External flash
Auto exposure bracketing
WB bracketing
Maximum flash synchronize - 1/180 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 180 (30fps) -
Maximum video resolution 1280x720 None
Video file format Motion JPEG -
Mic support
Headphone support
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 155 grams (0.34 lbs) 646 grams (1.42 lbs)
Dimensions 96 x 63 x 23mm (3.8" x 2.5" x 0.9") 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 150 photos -
Style of battery Battery Pack -
Battery model LI-42B 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC SD/SDHC card
Card slots Single Single
Retail pricing $0 $520