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Olympus E-400 vs Pentax K-x

Portability
77
Imaging
44
Features
31
Overall
38
Olympus E-400 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-400 vs Pentax K-x Key Specs

Olympus E-400
(Full Review)
  • 10MP - Four Thirds Sensor
  • 2.5" Fixed Screen
  • ISO 100 - 1600
  • No Video
  • Micro Four Thirds Mount
  • 435g - 130 x 91 x 53mm
  • Announced September 2006
  • Later Model is 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 Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Released December 2009
Photography Glossary

Olympus E-400 vs Pentax K-x Overview

Lets look a bit more closely at the Olympus E-400 versus Pentax K-x, both Entry-Level DSLR digital cameras by companies Olympus and Pentax. The resolution of the E-400 (10MP) and the K-x (12MP) is relatively well matched but the E-400 (Four Thirds) and K-x (APS-C) posses totally different sensor sizes.

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The E-400 was announced 4 years before the K-x which is quite a serious difference as far as tech is concerned. Both cameras have the same body design (Compact SLR).

Before we go into a complete comparison, here is a short synopsis of how the E-400 matches up against the K-x with respect to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-400 over the Pentax K-x

 E-400 K-x 

Reasons to pick Pentax K-x over the Olympus E-400

 K-x E-400 
ReleasedDecember 2009September 2006Newer by 39 months
Screen dimensions2.7"2.5"Bigger screen (+0.2")
Screen resolution230k215kSharper screen (+15k dot)

Common features in the Olympus E-400 and Pentax K-x

 E-400 K-x 
Focus manually More accurate focus
Screen typeFixed Fixed Fixed screen
Selfie screen Absent selfie screen
Touch friendly screen Absent Touch friendly screen

Olympus E-400 vs Pentax K-x Physical Comparison

When you are going to travel with your camera, you need to consider its weight and size. The Olympus E-400 has exterior dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") having a weight of 435 grams (0.96 lbs) whilst the Pentax K-x has specifications of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") along with a weight of 580 grams (1.28 lbs).

Take a look at the Olympus E-400 versus Pentax K-x in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will vary depending on the lens you are employing during that time. Underneath is a front view proportions comparison of the E-400 and the K-x.

Olympus E-400 vs Pentax K-x size comparison

Looking at size and weight, the portability rating of the E-400 and K-x is 77 and 69 respectively.

Olympus E-400 vs Pentax K-x top view buttons comparison

Olympus E-400 vs Pentax K-x Sensor Comparison

Often, it's difficult to see the difference between sensor dimensions just by looking at a spec sheet. The picture below will help provide you a better sense of the sensor sizes in the E-400 and K-x.

As you can see, the 2 cameras have different megapixels and different sensor dimensions. The E-400 using its tinier sensor will make getting shallower DOF more challenging and the Pentax K-x will resolve extra detail with its extra 2MP. Higher resolution can also help you crop pictures a bit more aggressively. The more aged E-400 is going to be disadvantaged when it comes to sensor technology.

Olympus E-400 vs Pentax K-x sensor size comparison

Olympus E-400 vs Pentax K-x Screen and ViewFinder

Olympus E-400 vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-400 as a Portrait photography camera
Pentax K-x as a Portrait photography camera
46
manual focus
decent sensor size (Four Thirds)
delivers RAW formats
no liveview
manual mode not possible
sensor resolution not great (10MP)
63
focusing manually
good sensor size (APS-C)
includes face detect autofocus
saves RAW formats
low MP (12MP)
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Street Comparison

Olympus E-400 Street photography details
Pentax K-x Street photography details
60
decent sensor size (Four Thirds)
delivers RAW formats
screen does not articulate
no image stabilization
67
image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW formats
no articulating screen
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Sports Comparison

Sports photography with Olympus E-400
Sports photography with Pentax K-x
38
decent sensor size (Four Thirds)
supports phase detect AF
no liveview
continuous shooting slow (3.0 frames/s)
no image stabilization
sensor resolution not great (10MP)
61
max shutter speed is good (1/6,000s)
image stabilization (Sensor based)
good sensor size (APS-C)
good battery (1,900 shots)
comes with phase detect autofocus
painfully slow continuous shooting (5.0 frames/s)
low MP (12 megapixels)
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Travel Comparison

Olympus E-400 Travel photography advice
Pentax K-x Travel photography advice
49
flash built-in
no Time Lapse function
sensor resolution not great (10MP)
screen is not selfie friendly
54
good battery (1,900 per charge)
built-in flash
doesn't have Timelapse mode
low MP (12 megapixels)
doesn't have selfie friendly screen
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Landscape Comparison

Olympus E-400 as a Landscape photography camera
Pentax K-x as a Landscape photography camera
45
manual focus
change lenses (Micro Four Thirds mount)
decent sensor size (Four Thirds)
delivers RAW formats
tiny screen (2.5")
no liveview
manual mode not possible
no image stabilization
sensor resolution not great (10 megapixels)
no Time Lapse function
61
focusing manually
swap lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW formats
good battery (1,900 shots)
small screen (2.7 inch)
low MP (12MP)
doesn't have Timelapse mode
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Vlogging Comparison

Olympus E-400 as a Vlogging camera
Pentax K-x as a Vlogging camera
9
no video recording
27
image stabilization (Sensor based)
includes face detect autofocus
doesn't have selfie friendly screen
low video resolution (1280 x 720 resolution)
doesn't have microphone port
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Olympus E-400 vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-400 and Pentax K-x
 Olympus E-400Pentax K-x
General Information
Manufacturer Olympus Pentax
Model type Olympus E-400 Pentax K-x
Type Entry-Level DSLR Entry-Level DSLR
Announced 2006-09-14 2009-12-23
Body design Compact SLR Compact SLR
Sensor Information
Processor - Prime
Sensor type CCD CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.6 x 15.8mm
Sensor surface area 224.9mm² 372.9mm²
Sensor resolution 10 megapixel 12 megapixel
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
Lowest native ISO 100 100
RAW format
Autofocusing
Manual focusing
Touch focus
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 3 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Available lenses 45 151
Crop factor 2.1 1.5
Screen
Range of screen Fixed Type Fixed Type
Screen size 2.5 inches 2.7 inches
Screen resolution 215 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch functionality
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder Optical (pentamirror) Optical (pentamirror)
Viewfinder coverage 95% 96%
Viewfinder magnification 0.46x 0.57x
Features
Slowest shutter speed 60s 30s
Maximum shutter speed 1/4000s 1/6000s
Continuous shooting speed 3.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Change WB
Image stabilization
Built-in flash
Flash distance 10.00 m (at ISO 100) 16.00 m
Flash settings Auto, Auto FP, Manual, Red-Eye Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
Hot shoe
Auto exposure bracketing
WB bracketing
Maximum flash sync - 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution None 1280x720
Video file format - Motion JPEG
Microphone jack
Headphone jack
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 435g (0.96 lbs) 580g (1.28 lbs)
Physical 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 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 - 1900 pictures
Battery form - Battery Pack
Battery ID - 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse shooting
Storage media Compact Flash (Type I or II), xD Picture Card SD/SDHC card
Storage slots 1 1
Price at launch $599 $600