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Olympus SZ-31MR iHS vs Pentax K-x

Portability
89
Imaging
39
Features
47
Overall
42
Olympus SZ-31MR iHS front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus SZ-31MR iHS vs Pentax K-x Key Specs

Olympus SZ-31MR iHS
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1920 x 1080 video
  • 25-600mm (F3.0-6.9) lens
  • 226g - 106 x 69 x 40mm
  • Revealed February 2012
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Push to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Revealed December 2009
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Olympus SZ-31MR iHS vs Pentax K-x Overview

The following is a in depth overview of the Olympus SZ-31MR iHS vs Pentax K-x, one is a Small Sensor Superzoom and the latter is a Entry-Level DSLR by competitors Olympus and Pentax. There exists a huge gap between the sensor resolutions of the SZ-31MR iHS (16MP) and K-x (12MP) and the SZ-31MR iHS (1/2.3") and K-x (APS-C) provide totally different sensor measurements.

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The SZ-31MR iHS was launched 2 years after the K-x which is quite a significant gap as far as technology is concerned. Both the cameras feature different body design with the Olympus SZ-31MR iHS being a Compact camera and the Pentax K-x being a Compact SLR camera.

Before delving straight to a in-depth comparison, here is a quick synopsis of how the SZ-31MR iHS grades versus the K-x with respect to portability, imaging, features and an overall mark.

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Reasons to pick Olympus SZ-31MR iHS over the Pentax K-x

 SZ-31MR iHS K-x 
RevealedFebruary 2012December 2009Newer by 26 months
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution920k230kCrisper screen (+690k dot)
Touch screen Quickly navigate

Reasons to pick Pentax K-x over the Olympus SZ-31MR iHS

 K-x SZ-31MR iHS 
Focus manually Very precise focusing

Common features in the Olympus SZ-31MR iHS and Pentax K-x

 SZ-31MR iHS K-x 
Screen typeFixed Fixed Fixed screen
Selfie screen Absent selfie screen

Olympus SZ-31MR iHS vs Pentax K-x Physical Comparison

If you are going to travel with your camera, you will need to factor in its weight and dimensions. The Olympus SZ-31MR iHS enjoys exterior measurements of 106mm x 69mm x 40mm (4.2" x 2.7" x 1.6") having a weight of 226 grams (0.50 lbs) and the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs).

Examine the Olympus SZ-31MR iHS vs Pentax K-x in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you are employing during that time. Below is a front view scale comparison of the SZ-31MR iHS and the K-x.

Olympus SZ-31MR iHS vs Pentax K-x size comparison

Factoring in dimensions and weight, the portability grade of the SZ-31MR iHS and K-x is 89 and 69 respectively.

Olympus SZ-31MR iHS vs Pentax K-x top view buttons comparison

Olympus SZ-31MR iHS vs Pentax K-x Sensor Comparison

Typically, it can be hard to envision the difference between sensor dimensions only by reading technical specs. The picture underneath should give you a far better sense of the sensor sizing in the SZ-31MR iHS and K-x.

As you have seen, both of the cameras come with different megapixels and different sensor dimensions. The SZ-31MR iHS featuring a tinier sensor will make shooting shallow depth of field harder and the Olympus SZ-31MR iHS will offer you more detail utilizing its extra 4MP. Higher resolution can also allow you to crop photographs a good deal more aggressively. The younger SZ-31MR iHS will have an edge with regard to sensor innovation.

Olympus SZ-31MR iHS vs Pentax K-x sensor size comparison

Olympus SZ-31MR iHS vs Pentax K-x Screen and ViewFinder

Olympus SZ-31MR iHS vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus SZ-31MR iHS Portrait photography features
Pentax K-x Portrait photography features
34
resolution is good (16MP)
comes with face detect focusing
focusing manually not possible
manual exposure not available
no external flash support
small sensor size (1/2.3")
does not have RAW files
63
manual focus
decent sensor size (APS-C)
offers face detect focus
exports RAW formats
sensor resolution not great (12 megapixels)
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Street Comparison

Olympus SZ-31MR iHS Street photography advice
Pentax K-x Street photography advice
64
image stabilization (Sensor-shift)
has touch to focus
lighter than average (226 grams)
screen is fixed
small sensor size (1/2.3")
does not have RAW files
67
has image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
fixed screen
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Sports Comparison

Olympus SZ-31MR iHS Sports photography details
Pentax K-x Sports photography details
44
incredible zoom range (25-600mm 24.0 x zoom)
image stabilization (Sensor-shift)
resolution is good (16 megapixels)
comes with tracking focus
no shutter priority
small sensor size (1/2.3")
terrible battery power (200 per charge)
does not have phase detect AF
61
high shutter speed (1/6,000s)
has image stabilization (Sensor based)
decent sensor size (APS-C)
better than average battery power (1,900 CIPA)
sensor has phase detect auto focus
low frames per second (5.0 fps)
sensor resolution not great (12MP)
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Travel Comparison

Olympus SZ-31MR iHS as a Travel photography camera
Pentax K-x as a Travel photography camera
67
lighter than average (226 grams)
has touch to focus
resolution is good (16MP)
built-in flash
decently wide (25mm)
great reach (600mm)
doesn't have Timelapse mode
terrible battery power (200 CIPA)
doesn't contain selfie friendly display
slow maximum aperture (f3.0)
54
better than average battery power (1,900 shots)
built-in flash
no Time Lapse recording
sensor resolution not great (12 megapixels)
screen is not selfie friendly
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Landscape Comparison

Olympus SZ-31MR iHS Landscape photography factors
Pentax K-x Landscape photography factors
41
decently wide (25mm)
screen size is good (3 inch)
image stabilization (Sensor-shift)
resolution is good (16MP)
focusing manually not possible
can't swap lens (fixed lens mount)
slow maximum aperture (f3.0)
manual exposure not available
small sensor size (1/2.3")
does not have RAW files
terrible battery power (200 per charge)
doesn't have Timelapse mode
61
manual focus
change lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
better than average battery power (1,900 per charge)
small screen (2.7")
sensor resolution not great (12 megapixels)
no Time Lapse recording
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Vlogging Comparison

Olympus SZ-31MR iHS as a Vlogging camera
Pentax K-x as a Vlogging camera
35
decently wide (25mm)
has touchscreen
image stabilization (Sensor-shift)
comes with face detect focusing
video res high (1920 x 1080 resolution)
lighter than average (226 grams)
slow maximum aperture (f3.0)
doesn't contain selfie friendly display
doesn't have microphone port
27
has image stabilization (Sensor based)
offers face detect focus
screen is not selfie friendly
low res video (1280 x 720 resolution)
no mic port
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Olympus SZ-31MR iHS vs Pentax K-x Specifications

Detailed spec comparison table for Olympus SZ-31MR iHS and Pentax K-x
 Olympus SZ-31MR iHSPentax K-x
General Information
Company Olympus Pentax
Model type Olympus SZ-31MR iHS Pentax K-x
Class Small Sensor Superzoom Entry-Level DSLR
Revealed 2012-02-08 2009-12-23
Body design Compact Compact SLR
Sensor Information
Processor Chip Dual TruePic V Prime
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 23.6 x 15.8mm
Sensor surface area 28.1mm² 372.9mm²
Sensor resolution 16MP 12MP
Anti alias filter
Aspect ratio 4:3 and 16:9 3:2
Maximum resolution 4608 x 3456 4288 x 2848
Maximum native ISO 6400 6400
Maximum boosted ISO - 12800
Minimum native ISO 80 100
RAW files
Autofocusing
Manual focusing
Touch to focus
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points - 11
Cross type focus points - -
Lens
Lens mount type fixed lens Pentax KAF2
Lens zoom range 25-600mm (24.0x) -
Highest aperture f/3.0-6.9 -
Macro focusing range 1cm -
Total lenses - 151
Crop factor 5.8 1.5
Screen
Range of screen Fixed Type Fixed Type
Screen size 3 inches 2.7 inches
Screen resolution 920k dot 230k dot
Selfie friendly
Liveview
Touch display
Screen technology Hypercrystal III TFT Color LCD TFT LCD monitor
Viewfinder Information
Viewfinder type None Optical (pentamirror)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.57x
Features
Lowest shutter speed 4 secs 30 secs
Highest shutter speed 1/1700 secs 1/6000 secs
Continuous shooting speed 7.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 9.30 m 16.00 m
Flash settings Auto, On, Off, Red-Eye, Fill-in Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AE bracketing
WB bracketing
Highest flash sync - 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 180 (30fps) 1280 x 720 (24 fps), 640 x 416 (24 fps)
Maximum video resolution 1920x1080 1280x720
Video format MPEG-4, H.264 Motion JPEG
Mic jack
Headphone jack
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 seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 226 grams (0.50 lbs) 580 grams (1.28 lbs)
Physical dimensions 106 x 69 x 40mm (4.2" x 2.7" x 1.6") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating not tested 72
DXO Color Depth rating not tested 22.8
DXO Dynamic range rating not tested 12.5
DXO Low light rating not tested 811
Other
Battery life 200 images 1900 images
Style of battery Battery Pack Battery Pack
Battery ID LI-50B 4 x AA
Self timer Yes (2 or 12 sec, pet auto shutter) Yes (2 or 12 sec)
Time lapse feature
Storage media SD/SDHC/SDXC SD/SDHC card
Storage slots 1 1
Price at launch $0 $600