Olympus TG-3 vs Pentax K-3 II
90 Imaging
40 Features
46 Overall
42


59 Imaging
66 Features
84 Overall
73
Olympus TG-3 vs Pentax K-3 II Key Specs
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Display
- ISO 100 - 6400
- Sensor-shift Image Stabilization
- 1920 x 1080 video
- 25-100mm (F2.0-4.9) lens
- 247g - 112 x 66 x 31mm
- Announced March 2014
- Renewed by Olympus TG-4
(Full Review)
- 24MP - APS-C Sensor
- 3.2" Fixed Display
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 800g - 131 x 100 x 77mm
- Introduced April 2015
- Older Model is Pentax K-3

Olympus TG-3 vs Pentax K-3 II Overview
Lets look a little more closely at the Olympus TG-3 vs Pentax K-3 II, one being a Waterproof and the other is a Advanced DSLR by companies Olympus and Pentax. There is a crucial difference between the resolutions of the TG-3 (16MP) and K-3 II (24MP) and the TG-3 (1/2.3") and K-3 II (APS-C) use different sensor dimensions.

The TG-3 was revealed 12 months earlier than the K-3 II which means that they are both of a similar generation. Both of the cameras come with different body type with the Olympus TG-3 being a Compact camera and the Pentax K-3 II being a Mid-size SLR camera.
Before diving through a detailed comparison, below is a brief synopsis of how the TG-3 grades vs the K-3 II in relation to portability, imaging, features and an overall rating.

Olympus TG-3 vs Pentax K-3 II Gallery
Below is a sample of the gallery pics for Olympus Tough TG-3 and Pentax K-3 II. The full galleries are available at Olympus TG-3 Gallery and Pentax K-3 II Gallery.
Reasons to pick Olympus TG-3 over the Pentax K-3 II
TG-3 | K-3 II |
---|
Reasons to pick Pentax K-3 II over the Olympus TG-3
K-3 II | TG-3 | |||
---|---|---|---|---|
Introduced | April 2015 | ![]() | March 2014 | Fresher by 12 months |
Focus manually | ![]() | Very accurate focus | ||
Display dimension | 3.2" | ![]() | 3" | Larger display (+0.2") |
Display resolution | 1037k | ![]() | 460k | Sharper display (+577k dot) |
Common features in the Olympus TG-3 and Pentax K-3 II
TG-3 | K-3 II | |||
---|---|---|---|---|
Display type | Fixed | ![]() | Fixed | Fixed display |
Selfie screen | ![]() | Neither comes with selfie screen | ||
Touch display | ![]() | Neither comes with Touch display |
Olympus TG-3 vs Pentax K-3 II Physical Comparison
If you are aiming to carry your camera often, you need to factor its weight and measurements. The Olympus TG-3 comes with external dimensions of 112mm x 66mm x 31mm (4.4" x 2.6" x 1.2") accompanied by a weight of 247 grams (0.54 lbs) whilst the Pentax K-3 II has proportions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") along with a weight of 800 grams (1.76 lbs).
Contrast the Olympus TG-3 vs Pentax K-3 II in the new Camera and Lens Size Comparison Tool.
Take into account, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are utilizing during that time. Underneath is the front view overall size comparison of the TG-3 and the K-3 II.

Considering size and weight, the portability score of the TG-3 and K-3 II is 90 and 59 respectively.

Olympus TG-3 vs Pentax K-3 II Sensor Comparison
Often, it's hard to imagine the gap between sensor sizing simply by reading technical specs. The graphic here might give you a much better sense of the sensor sizes in the TG-3 and K-3 II.
As you have seen, both of the cameras posses different megapixels and different sensor sizing. The TG-3 using its tinier sensor is going to make achieving shallower DOF harder and the Pentax K-3 II will offer you greater detail because of its extra 8MP. Greater resolution can also allow you to crop images somewhat more aggressively. The older TG-3 is going to be disadvantaged in sensor tech.

Olympus TG-3 vs Pentax K-3 II Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Olympus TG-3 vs Pentax K-3 II Specifications
Olympus Tough TG-3 | Pentax K-3 II | |
---|---|---|
General Information | ||
Brand | Olympus | Pentax |
Model | Olympus Tough TG-3 | Pentax K-3 II |
Category | Waterproof | Advanced DSLR |
Announced | 2014-03-31 | 2015-04-23 |
Physical type | Compact | Mid-size SLR |
Sensor Information | ||
Powered by | TruePic VII | 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 area | 28.1mm² | 366.6mm² |
Sensor resolution | 16 megapixels | 24 megapixels |
Anti aliasing filter | ||
Aspect ratio | 3:2 | 3:2 |
Full resolution | 4608 x 3456 | 6016 x 4000 |
Max native ISO | 6400 | 51200 |
Minimum native ISO | 100 | 100 |
RAW data | ||
Autofocusing | ||
Manual focus | ||
Touch to focus | ||
Autofocus continuous | ||
Single autofocus | ||
Tracking autofocus | ||
Selective autofocus | ||
Autofocus center weighted | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detect autofocus | ||
Contract detect autofocus | ||
Phase detect autofocus | ||
Number of focus points | - | 27 |
Cross focus points | - | 25 |
Lens | ||
Lens mounting type | fixed lens | Pentax KAF2 |
Lens focal range | 25-100mm (4.0x) | - |
Highest aperture | f/2.0-4.9 | - |
Macro focus range | 1cm | - |
Number of lenses | - | 151 |
Crop factor | 5.8 | 1.5 |
Screen | ||
Type of display | Fixed Type | Fixed Type |
Display size | 3" | 3.2" |
Display resolution | 460k dots | 1,037k dots |
Selfie friendly | ||
Liveview | ||
Touch operation | ||
Display technology | TFT-LCD | - |
Viewfinder Information | ||
Viewfinder type | None | Optical (pentaprism) |
Viewfinder coverage | - | 100 percent |
Viewfinder magnification | - | 0.64x |
Features | ||
Slowest shutter speed | 4s | 30s |
Maximum shutter speed | 1/2000s | 1/8000s |
Continuous shooting rate | 5.0 frames per sec | 8.3 frames per sec |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Change white balance | ||
Image stabilization | ||
Integrated flash | ||
Flash range | - | no built-in flash |
Flash options | Auto, redeye reduction, fill-in, off, LED | Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash) |
External flash | ||
Auto exposure bracketing | ||
White balance bracketing | ||
Maximum flash synchronize | - | 1/180s |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Supported video resolutions | 1920 x 1080 (30p), 1280 x 720 (30p), 640 x 480 (30 fps) | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) |
Max video resolution | 1920x1080 | 1920x1080 |
Video file format | H.264, Motion JPEG | MPEG-4, H.264 |
Mic port | ||
Headphone port | ||
Connectivity | ||
Wireless | Built-In | Optional |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 3.0 (5 GBit/sec) |
GPS | BuiltIn | BuiltIn |
Physical | ||
Environment sealing | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 247 gr (0.54 lbs) | 800 gr (1.76 lbs) |
Dimensions | 112 x 66 x 31mm (4.4" x 2.6" x 1.2") | 131 x 100 x 77mm (5.2" x 3.9" x 3.0") |
DXO scores | ||
DXO All around score | not tested | 80 |
DXO Color Depth score | not tested | 23.6 |
DXO Dynamic range score | not tested | 13.6 |
DXO Low light score | not tested | 1106 |
Other | ||
Battery life | 330 shots | 720 shots |
Battery type | Battery Pack | Battery Pack |
Battery model | LI-92B | D-LI90 |
Self timer | Yes (2 or 12 sec, custom) | Yes ( 2 or 12 seconds) |
Time lapse recording | ||
Storage type | SD, SDHC, SDXC, Internal Memory | Dual SD/SDHC/SDXC |
Card slots | 1 | 2 |
Price at launch | $350 | $829 |