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Canon 400D vs Pentax K-x

Portability
69
Imaging
48
Features
33
Overall
42
Canon EOS 400D front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Canon 400D vs Pentax K-x Key Specs

Canon 400D
(Full Review)
  • 10MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 1600
  • No Video
  • Canon EF/EF-S Mount
  • 556g - 127 x 94 x 65mm
  • Launched October 2006
  • Additionally referred to as EOS Digital Rebel XTi / EOS Kiss Digital X
  • Succeeded the Canon 350D
  • Refreshed by Canon 450D
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Boost to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Revealed December 2009
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Canon 400D vs Pentax K-x Overview

In this article, we will be reviewing the Canon 400D and Pentax K-x, both Entry-Level DSLR cameras by competitors Canon and Pentax. The image resolution of the 400D (10MP) and the K-x (12MP) is relatively close and they feature the same exact sensor dimensions (APS-C).

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The 400D was manufactured 4 years earlier than the K-x and that is a fairly serious difference as far as camera tech is concerned. Both the cameras offer the identical body type (Compact SLR).

Before diving straight into a in depth comparison, below is a simple introduction of how the 400D grades vs the K-x in regards to portability, imaging, features and an overall rating.

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Reasons to pick Canon 400D over the Pentax K-x

 400D K-x 

Reasons to pick Pentax K-x over the Canon 400D

 K-x 400D 
RevealedDecember 2009October 2006Fresher by 38 months
Screen sizing2.7"2.5"Bigger screen (+0.2")

Common features in the Canon 400D and Pentax K-x

 400D K-x 
Manual focus Very exact focusing
Screen typeFixed Fixed Fixed screen
Screen resolution230k230kIdentical screen resolution
Selfie screen Lack of selfie screen
Touch friendly screen Lack of Touch friendly screen

Canon 400D vs Pentax K-x Physical Comparison

For those who are aiming to carry your camera, you have to consider its weight and measurements. The Canon 400D provides outside dimensions of 127mm x 94mm x 65mm (5.0" x 3.7" x 2.6") having a weight of 556 grams (1.23 lbs) while the Pentax K-x has proportions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") with a weight of 580 grams (1.28 lbs).

Compare the Canon 400D and Pentax K-x in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will vary depending on the lens you are using during that time. Here is the front view scale comparison of the 400D compared to the K-x.

Canon 400D vs Pentax K-x size comparison

Looking at size and weight, the portability score of the 400D and K-x is 69 and 69 respectively.

Canon 400D vs Pentax K-x top view buttons comparison

Canon 400D vs Pentax K-x Sensor Comparison

Often, its tough to imagine the contrast in sensor sizing only by looking through a spec sheet. The visual here might give you a stronger sense of the sensor sizes in the 400D and K-x.

Clearly, both of these cameras offer the same exact sensor sizing albeit different megapixels. You can count on the Pentax K-x to render greater detail due to its extra 2 Megapixels. Higher resolution will also make it easier to crop shots a little more aggressively. The older 400D will be behind with regard to sensor innovation.

Canon 400D vs Pentax K-x sensor size comparison

Canon 400D vs Pentax K-x Screen and ViewFinder

Canon 400D vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Canon 400D Portrait photography factors
Pentax K-x Portrait photography factors
52
focusing manually
sensor size is decent (APS-C)
exports RAW files
doesn't have liveview
megapixel count low (10 megapixels)
63
manual focus
sensor size is nice (APS-C)
comes with face detection autofocus
exports RAW files
MP count low (12MP)
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Street Comparison

Canon 400D as a Street photography camera
Pentax K-x as a Street photography camera
57
sensor size is decent (APS-C)
exports RAW files
no moving screen
no image stabilization
67
image stabilization (Sensor based)
sensor size is nice (APS-C)
exports RAW files
no articulating screen
Photography Glossary

Sports Comparison

Canon 400D as a Sports photography camera
Pentax K-x as a Sports photography camera
40
sensor size is decent (APS-C)
has phase detect autofocus
doesn't have liveview
slow fps (3.0 fps)
no image stabilization
megapixel count low (10 megapixels)
61
max shutter speed is good (1/6,000s)
image stabilization (Sensor based)
sensor size is nice (APS-C)
good battery power (1,900 per charge)
has phase detect autofocus
low fps (5.0 frames/s)
MP count low (12MP)
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Travel Comparison

Canon 400D Travel photography factors
Pentax K-x Travel photography factors
47
flash built-in
does not have Time Lapse mode
megapixel count low (10 megapixels)
display isn't selfie friendly
54
good battery power (1,900 per charge)
built-in flash
missing Time Lapse function
MP count low (12MP)
display isn't selfie friendly
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Landscape Comparison

Canon 400D as a Landscape photography camera
Pentax K-x as a Landscape photography camera
48
focusing manually
switch lenses (Canon EF/EF-S mount)
sensor size is decent (APS-C)
exports RAW files
screen is somewhat small (2.5")
doesn't have liveview
no image stabilization
megapixel count low (10MP)
does not have Time Lapse mode
61
manual focus
interchangeable lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is nice (APS-C)
exports RAW files
good battery power (1,900 CIPA)
screen is somewhat small (2.7")
MP count low (12MP)
missing Time Lapse function
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Vlogging Comparison

Canon 400D Vlogging factors
Pentax K-x Vlogging factors
9
can't shoot video
27
image stabilization (Sensor based)
comes with face detection autofocus
display isn't selfie friendly
video resolution low (1280 x 720 pixels)
missing external mic socket
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Canon 400D vs Pentax K-x Specifications

Detailed spec comparison table for Canon 400D and Pentax K-x
 Canon EOS 400DPentax K-x
General Information
Manufacturer Canon Pentax
Model Canon EOS 400D Pentax K-x
Otherwise known as EOS Digital Rebel XTi / EOS Kiss Digital X -
Type Entry-Level DSLR Entry-Level DSLR
Launched 2006-10-14 2009-12-23
Physical type Compact SLR Compact SLR
Sensor Information
Chip - Prime
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor dimensions 22.2 x 14.8mm 23.6 x 15.8mm
Sensor area 328.6mm² 372.9mm²
Sensor resolution 10 megapixel 12 megapixel
Anti aliasing filter
Aspect ratio 3:2 3:2
Highest resolution 3888 x 2592 4288 x 2848
Highest native ISO 1600 6400
Highest boosted ISO - 12800
Lowest native ISO 100 100
RAW data
Autofocusing
Manual focus
AF touch
Continuous AF
AF single
AF tracking
Selective AF
AF center weighted
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 9 11
Lens
Lens mount Canon EF/EF-S Pentax KAF2
Amount of lenses 326 151
Focal length multiplier 1.6 1.5
Screen
Type of display Fixed Type Fixed Type
Display size 2.5 inch 2.7 inch
Resolution of display 230k dots 230k dots
Selfie friendly
Liveview
Touch operation
Display technology - TFT LCD monitor
Viewfinder Information
Viewfinder type Optical (pentamirror) Optical (pentamirror)
Viewfinder coverage 95 percent 96 percent
Viewfinder magnification 0.5x 0.57x
Features
Lowest shutter speed 30 seconds 30 seconds
Highest shutter speed 1/4000 seconds 1/6000 seconds
Continuous shooting rate 3.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash range 12.00 m (ISO 100) 16.00 m
Flash modes Auto, On, Red-eye reduction, Off Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
Hot shoe
AE bracketing
White balance bracketing
Highest flash synchronize 1/200 seconds 1/180 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions - 1280 x 720 (24 fps), 640 x 416 (24 fps)
Highest video resolution None 1280x720
Video format - Motion JPEG
Mic port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 556 grams (1.23 pounds) 580 grams (1.28 pounds)
Dimensions 127 x 94 x 65mm (5.0" x 3.7" x 2.6") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around score 62 72
DXO Color Depth score 22.1 22.8
DXO Dynamic range score 11.0 12.5
DXO Low light score 664 811
Other
Battery life - 1900 images
Battery type - Battery Pack
Battery model - 4 x AA
Self timer Yes (10 sec (2 sec with mirror lock-up)) Yes (2 or 12 sec)
Time lapse feature
Storage type Compact Flash (Type I or II) SD/SDHC card
Card slots 1 1
Retail cost $600 $600