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Olympus TG-320 vs Pentax K-3

Portability
94
Imaging
37
Features
33
Overall
35
Olympus TG-320 front
 
Pentax K-3 front
Portability
59
Imaging
65
Features
85
Overall
73

Olympus TG-320 vs Pentax K-3 Key Specs

Olympus TG-320
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 80 - 1600
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-102mm (F3.5-5.1) lens
  • 155g - 96 x 63 x 23mm
  • Announced January 2012
Pentax K-3
(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
  • Announced April 2014
  • Refreshed by Pentax K-3 II
Photography Glossary

Olympus TG-320 vs Pentax K-3 Overview

Lets look a little more in depth at the Olympus TG-320 and Pentax K-3, one is a Waterproof and the other is a Advanced DSLR by rivals Olympus and Pentax. There exists a sizeable gap among the resolutions of the TG-320 (14MP) and K-3 (24MP) and the TG-320 (1/2.3") and K-3 (APS-C) possess different sensor dimensions.

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The TG-320 was brought out 3 years before the K-3 which is a fairly large gap as far as camera technology is concerned. Both of the cameras come with different body type with the Olympus TG-320 being a Compact camera and the Pentax K-3 being a Mid-size SLR camera.

Before diving through a detailed comparison, below is a quick summation of how the TG-320 grades vs the K-3 with regard to portability, imaging, features and an overall mark.

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Reasons to pick Olympus TG-320 over the Pentax K-3

 TG-320 K-3 

Reasons to pick Pentax K-3 over the Olympus TG-320

 K-3 TG-320 
AnnouncedApril 2014January 2012Newer by 27 months
Manual focus Dial accurate focusing
Display dimension3.2"2.7"Larger display (+0.5")
Display resolution1037k230kSharper display (+807k dot)

Common features in the Olympus TG-320 and Pentax K-3

 TG-320 K-3 
Display typeFixed Fixed Fixed display
Selfie screen Absent selfie screen
Touch friendly display Absent Touch friendly display

Olympus TG-320 vs Pentax K-3 Physical Comparison

For those who are planning to travel with your camera regularly, you should think about its weight and proportions. The Olympus TG-320 features outside measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") with a weight of 155 grams (0.34 lbs) whilst the Pentax K-3 has measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs).

Take a look at the Olympus TG-320 and Pentax K-3 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilizing at the time. Here is the front view proportions comparison of the TG-320 compared to the K-3.

Olympus TG-320 vs Pentax K-3 size comparison

Taking into account dimensions and weight, the portability rating of the TG-320 and K-3 is 94 and 59 respectively.

Olympus TG-320 vs Pentax K-3 top view buttons comparison

Olympus TG-320 vs Pentax K-3 Sensor Comparison

More often than not, it is very difficult to visualize the gap in sensor dimensions simply by looking through specs. The picture below will help offer you a better sense of the sensor measurements in the TG-320 and K-3.

All in all, both cameras posses different megapixels and different sensor dimensions. The TG-320 because of its smaller sensor is going to make getting shallow depth of field more challenging and the Pentax K-3 will result in greater detail having its extra 10 Megapixels. Greater resolution will also allow you to crop pics somewhat more aggressively. The more aged TG-320 will be disadvantaged when it comes to sensor tech.

Olympus TG-320 vs Pentax K-3 sensor size comparison

Olympus TG-320 vs Pentax K-3 Screen and ViewFinder

Olympus TG-320 vs Pentax K-3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus TG-320 as a Portrait photography camera
Pentax K-3 as a Portrait photography camera
33
good resolution (14MP)
offers face detect focus
manual focus not available
manual mode not possible
no external flash support
small sensor size (1/2.3")
lack of RAW format
79
focusing manually
good megapixels (24MP)
good sensor size (APS-C)
provides face detection focus
delivers RAW files
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Street Comparison

Olympus TG-320 Street photography information
Pentax K-3 Street photography information
66
has image stabilization (Sensor-shift)
environment proof
lighter than average in class (155g)
no articulating screen
small sensor size (1/2.3")
lack of RAW format
69
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
environment proof
great ISO range (51,200)
no moving screen
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Sports Comparison

Olympus TG-320 Sports photography highlights
Pentax K-3 Sports photography highlights
40
has image stabilization (Sensor-shift)
good resolution (14 megapixels)
offers tracking focus
environment proof
slow continuous shooting (1.0 frames/s)
no shutter priority
small sensor size (1/2.3")
bad battery power (150 shots)
lack of phase detect auto focus
76
high shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based)
good megapixels (24MP)
good sensor size (APS-C)
provides tracking autofocus
environment proof
supports phase detect auto focus
low battery life (560 per charge)
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Travel Comparison

Olympus TG-320 Travel photography highlights
Pentax K-3 Travel photography highlights
67
lighter than average in class (155g)
environment proof
good resolution (14MP)
flash built-in
decently wide (28mm)
doesn't have Timelapse mode
bad battery power (150 shots)
display isn't selfie friendly
somewhat slow max aperture (f3.5)
60
environment proof
good megapixels (24MP)
built-in flash
low battery life (560 per charge)
display isn't selfie friendly
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Landscape Comparison

Olympus TG-320 as a Landscape photography camera
Pentax K-3 as a Landscape photography camera
39
decently wide (28mm)
has image stabilization (Sensor-shift)
good resolution (14MP)
environment proof
manual focus not available
cannot swap lens (fixed lens mount)
somewhat slow max aperture (f3.5)
screen is small (2.7 inches)
manual mode not possible
small sensor size (1/2.3")
lack of RAW format
bad battery power (150 CIPA)
doesn't have Timelapse mode
77
focusing manually
interchangeable lenses (Pentax KAF2 mount)
screen size is good (3.2 inches)
built in image stabilization (Sensor based)
good megapixels (24 megapixels)
good sensor size (APS-C)
no low pass filter
great ISO range (51,200)
delivers RAW files
environment proof
2 card slots
low battery life (560 shots)
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Vlogging Comparison

Olympus TG-320 Vlogging details
Pentax K-3 Vlogging details
32
decently wide (28mm)
has image stabilization (Sensor-shift)
offers face detect focus
lighter than average in class (155 grams)
somewhat slow max aperture (f3.5)
display isn't selfie friendly
video res low (1280 x 720 resolution)
doesn't have microphone jack
34
built in image stabilization (Sensor based)
provides face detection focus
high res video (1920 x 1080 pixels)
comes with external mic support
display isn't selfie friendly
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Olympus TG-320 vs Pentax K-3 Specifications

Detailed spec comparison table for Olympus TG-320 and Pentax K-3
 Olympus TG-320Pentax K-3
General Information
Make Olympus Pentax
Model Olympus TG-320 Pentax K-3
Class Waterproof Advanced DSLR
Announced 2012-01-10 2014-04-10
Physical type Compact Mid-size SLR
Sensor Information
Powered by TruePic III+ Prime III
Sensor type CCD 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 14MP 24MP
Anti aliasing filter
Aspect ratio - 3:2
Highest Possible resolution 4288 x 3216 6016 x 4000
Maximum native ISO 1600 51200
Min native ISO 80 100
RAW images
Autofocusing
Manual focus
Touch to focus
Continuous autofocus
Single autofocus
Tracking autofocus
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points - 27
Cross focus points - 25
Lens
Lens mounting type fixed lens Pentax KAF2
Lens focal range 28-102mm (3.6x) -
Max aperture f/3.5-5.1 -
Macro focus distance 3cm -
Number of lenses - 151
Focal length multiplier 5.8 1.5
Screen
Display type Fixed Type Fixed Type
Display size 2.7 inch 3.2 inch
Display resolution 230 thousand dots 1,037 thousand dots
Selfie friendly
Liveview
Touch function
Display technology TFT Color LCD TFT LCD monitor
Viewfinder Information
Viewfinder type None Optical (pentaprism)
Viewfinder coverage - 100%
Viewfinder magnification - 0.64x
Features
Minimum shutter speed 4 seconds 30 seconds
Fastest shutter speed 1/2000 seconds 1/8000 seconds
Continuous shutter rate 1.0 frames per sec 8.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Custom white balance
Image stabilization
Integrated flash
Flash range 5.80 m 13.00 m (at ISO 100)
Flash options Auto, On, Off, Red-Eye, Fill-in Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash synchronize - 1/180 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 180 (30fps) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p)
Maximum video resolution 1280x720 1920x1080
Video format MPEG-4, H.264 MPEG-4, H.264
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.0 (5 GBit/sec)
GPS None Optional
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 155 grams (0.34 lb) 800 grams (1.76 lb)
Dimensions 96 x 63 x 23mm (3.8" x 2.5" x 0.9") 131 x 100 x 77mm (5.2" x 3.9" x 3.0")
DXO scores
DXO Overall score not tested 80
DXO Color Depth score not tested 23.7
DXO Dynamic range score not tested 13.4
DXO Low light score not tested 1216
Other
Battery life 150 shots 560 shots
Battery style Battery Pack Battery Pack
Battery model LI-42B D-LI90
Self timer Yes (2 or 12 sec, pet auto shutter) Yes ( 2 or 12 seconds)
Time lapse shooting
Type of storage SD/SDHC/SDXC Dual SD/SDHC/SDXC
Card slots 1 Two
Retail pricing $0 $639