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Olympus E-420 vs Pentax K-x

Portability
77
Imaging
45
Features
36
Overall
41
Olympus E-420 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-420 vs Pentax K-x Key Specs

Olympus E-420
(Full Review)
  • 10MP - Four Thirds Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 1600
  • No Video
  • Micro Four Thirds Mount
  • 426g - 130 x 91 x 53mm
  • Announced June 2008
  • Succeeded the Olympus E-410
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Bump to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Announced December 2009
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Olympus E-420 vs Pentax K-x Overview

Following is a thorough comparison of the Olympus E-420 and Pentax K-x, both Entry-Level DSLR cameras by competitors Olympus and Pentax. The image resolution of the E-420 (10MP) and the K-x (12MP) is relatively close but the E-420 (Four Thirds) and K-x (APS-C) use totally different sensor size.

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The E-420 was revealed 18 months before the K-x which makes the cameras a generation away from each other. Both of the cameras come with the identical body type (Compact SLR).

Before we go in to a full comparison, below is a simple introduction of how the E-420 matches up against the K-x with regard to portability, imaging, features and an overall score.

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Reasons to pick Olympus E-420 over the Pentax K-x

 E-420 K-x 

Reasons to pick Pentax K-x over the Olympus E-420

 K-x E-420 
AnnouncedDecember 2009June 2008More modern by 18 months

Common features in the Olympus E-420 and Pentax K-x

 E-420 K-x 
Focus manually Very accurate focus
Screen typeFixed Fixed Fixed screen
Screen dimension2.7"2.7"Identical screen size
Screen resolution230k230kExact same screen resolution
Selfie screen No selfie screen
Touch friendly screen No Touch friendly screen

Olympus E-420 vs Pentax K-x Physical Comparison

For those who are planning to carry around your camera frequently, you will have to take into account its weight and size. The Olympus E-420 enjoys outside measurements of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") with a weight of 426 grams (0.94 lbs) and the Pentax K-x has specifications of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs).

Contrast the Olympus E-420 and Pentax K-x in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilising at the time. Underneath is the front view scale comparison of the E-420 compared to the K-x.

Olympus E-420 vs Pentax K-x size comparison

Looking at size and weight, the portability rating of the E-420 and K-x is 77 and 69 respectively.

Olympus E-420 vs Pentax K-x top view buttons comparison

Olympus E-420 vs Pentax K-x Sensor Comparison

Often, it can be tough to envision the contrast in sensor sizes only by looking through specs. The pic underneath may offer you a greater sense of the sensor sizing in the E-420 and K-x.

As you can plainly see, both cameras have got different megapixels and different sensor sizes. The E-420 using its smaller sensor will make getting shallow DOF tougher and the Pentax K-x will result in greater detail because of its extra 2 Megapixels. Higher resolution will make it easier to crop pictures much more aggressively. The more aged E-420 will be behind when it comes to sensor tech.

Olympus E-420 vs Pentax K-x sensor size comparison

Olympus E-420 vs Pentax K-x Screen and ViewFinder

Olympus E-420 vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-420 as a Portrait photography camera
Pentax K-x as a Portrait photography camera
57
focusing manually
good sensor size (Four Thirds)
exports RAW files
low MP (10MP)
63
you can focus manually
nice sensor size (APS-C)
comes with face detection focusing
saves RAW formats
low resolution sensor (12MP)
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Street Comparison

Olympus E-420 Street photography features
Pentax K-x Street photography features
64
good sensor size (Four Thirds)
exports RAW files
lighter than competition (426 grams)
no moving screen
lack of image stabilization
67
image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW formats
no moving screen
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Sports Comparison

Olympus E-420 Sports photography details
Pentax K-x Sports photography details
39
good sensor size (Four Thirds)
has phase detect AF
continuous shooting slow (4.0 frames/s)
lack of image stabilization
low MP (10MP)
not so great battery power (500 shots)
61
high shutter speed (1/6,000s)
image stabilization (Sensor based)
nice sensor size (APS-C)
good battery (1,900 per charge)
supports phase detect AF
max frames per second low (5.0 frames per second)
low resolution sensor (12MP)
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Travel Comparison

Olympus E-420 Travel photography factors
Pentax K-x Travel photography factors
53
lighter than competition (426 grams)
has built in flash
missing Timelapse mode
not so great battery power (500 shots)
low MP (10MP)
screen isn't selfie friendly
54
good battery (1,900 per charge)
built-in flash
lack of Timelapse recording
low resolution sensor (12MP)
doesn't feature selfie friendly screen
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Landscape Comparison

Olympus E-420 Landscape photography info
Pentax K-x Landscape photography info
47
focusing manually
change lenses (Micro Four Thirds mount)
good sensor size (Four Thirds)
exports RAW files
small screen (2.7 inches)
lack of image stabilization
low MP (10 megapixels)
not so great battery power (500 per charge)
missing Timelapse mode
61
you can focus manually
swap lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW formats
good battery (1,900 shots)
screen is small (2.7 inch)
low resolution sensor (12MP)
lack of Timelapse recording
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Vlogging Comparison

Olympus E-420 as a Vlogging camera
Pentax K-x as a Vlogging camera
9
no video
27
image stabilization (Sensor based)
comes with face detection focusing
doesn't feature selfie friendly screen
low quality video (1280 x 720 pixels)
lack of external microphone jack
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Olympus E-420 vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-420 and Pentax K-x
 Olympus E-420Pentax K-x
General Information
Make Olympus Pentax
Model type Olympus E-420 Pentax K-x
Category Entry-Level DSLR Entry-Level DSLR
Announced 2008-06-23 2009-12-23
Body design Compact SLR Compact SLR
Sensor Information
Chip TruePic III Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.6 x 15.8mm
Sensor area 224.9mm² 372.9mm²
Sensor resolution 10 megapixels 12 megapixels
Anti alias filter
Aspect ratio 4:3 3:2
Full resolution 3648 x 2736 4288 x 2848
Max native ISO 1600 6400
Max boosted ISO - 12800
Minimum native ISO 100 100
RAW images
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Tracking autofocus
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 3 11
Lens
Lens support Micro Four Thirds Pentax KAF2
Amount of lenses 45 151
Crop factor 2.1 1.5
Screen
Screen type Fixed Type Fixed Type
Screen sizing 2.7" 2.7"
Resolution of screen 230k dot 230k dot
Selfie friendly
Liveview
Touch friendly
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Optical (pentamirror) Optical (pentamirror)
Viewfinder coverage 95 percent 96 percent
Viewfinder magnification 0.46x 0.57x
Features
Slowest shutter speed 60s 30s
Maximum shutter speed 1/4000s 1/6000s
Continuous shooting speed 4.0 frames per sec 5.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 12.00 m (at ISO 100) 16.00 m
Flash modes Auto, Auto FP, Manual, Red-Eye Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AEB
White balance bracketing
Maximum flash sync 1/180s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions - 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution None 1280x720
Video format - Motion JPEG
Microphone input
Headphone input
Connectivity
Wireless None 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 426g (0.94 lb) 580g (1.28 lb)
Dimensions 130 x 91 x 53mm (5.1" x 3.6" x 2.1") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating 56 72
DXO Color Depth rating 21.5 22.8
DXO Dynamic range rating 10.4 12.5
DXO Low light rating 527 811
Other
Battery life 500 images 1900 images
Battery format Battery Pack Battery Pack
Battery ID - 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse shooting
Type of storage Compact Flash (Type I or II), xD Picture Card SD/SDHC card
Storage slots 1 1
Launch price $999 $600