Olympus E-400 vs Pentax K-r
77 Imaging
43 Features
31 Overall
38


67 Imaging
52 Features
52 Overall
52
Olympus E-400 vs Pentax K-r Key Specs
(Full Review)
- 10MP - Four Thirds Sensor
- 2.5" Fixed Display
- ISO 100 - 1600
- No Video
- Micro Four Thirds Mount
- 435g - 130 x 91 x 53mm
- Launched September 2006
- Refreshed by Olympus E-410
(Full Review)
- 12MP - APS-C Sensor
- 3" Fixed Screen
- ISO 200 - 12800 (Raise to 25600)
- Sensor based Image Stabilization
- 1/6000s Max Shutter
- 1280 x 720 video
- Pentax KAF2 Mount
- 598g - 125 x 97 x 68mm
- Launched March 2011

Olympus E-400 vs Pentax K-r Overview
Its time to take a deeper look at the Olympus E-400 vs Pentax K-r, both Entry-Level DSLR cameras by manufacturers Olympus and Pentax. The image resolution of the E-400 (10MP) and the K-r (12MP) is pretty close but the E-400 (Four Thirds) and K-r (APS-C) posses different sensor measurements.

The E-400 was unveiled 5 years prior to the K-r which is a fairly serious gap as far as camera technology is concerned. Both of the cameras have the same body design (Compact SLR).
Before going into a detailed comparison, here is a quick overview of how the E-400 matches up vs the K-r with regard to portability, imaging, features and an overall score.

Olympus E-400 vs Pentax K-r Gallery
This is a preview of the gallery images for Olympus E-400 and Pentax K-r. The full galleries are provided at Olympus E-400 Gallery and Pentax K-r Gallery.
Reasons to pick Olympus E-400 over the Pentax K-r
E-400 | K-r |
---|
Reasons to pick Pentax K-r over the Olympus E-400
K-r | E-400 | |||
---|---|---|---|---|
Launched | March 2011 | ![]() | September 2006 | More modern by 54 months |
Screen dimensions | 3" | ![]() | 2.5" | Bigger screen (+0.5") |
Screen resolution | 921k | ![]() | 215k | Crisper screen (+706k dot) |
Common features in the Olympus E-400 and Pentax K-r
E-400 | K-r | |||
---|---|---|---|---|
Manually focus | ![]() | More accurate focus | ||
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Selfie screen | ![]() | Lacking selfie screen | ||
Touch screen | ![]() | Neither provides Touch screen |
Olympus E-400 vs Pentax K-r Physical Comparison
If you're intending to carry around your camera regularly, you will want to take into account its weight and proportions. The Olympus E-400 provides external dimensions of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") along with a weight of 435 grams (0.96 lbs) and the Pentax K-r has measurements of 125mm x 97mm x 68mm (4.9" x 3.8" x 2.7") having a weight of 598 grams (1.32 lbs).
Contrast the Olympus E-400 vs Pentax K-r in the all new Camera and Lens Size Comparison Tool.
Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilizing at that moment. Following is a front view dimensions comparison of the E-400 vs the K-r.

Taking into consideration dimensions and weight, the portability rating of the E-400 and K-r is 77 and 67 respectively.

Olympus E-400 vs Pentax K-r Sensor Comparison
Quite often, it is difficult to imagine the difference in sensor sizes purely by viewing technical specs. The picture below will offer you a more clear sense of the sensor sizes in the E-400 and K-r.
As you can tell, both of the cameras have different resolutions and different sensor sizes. The E-400 using its smaller sensor is going to make achieving shallower depth of field tougher and the Pentax K-r will result in more detail having an extra 2MP. Higher resolution will help you crop shots a bit more aggressively. The more aged E-400 will be behind in sensor technology.

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


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Olympus E-400 vs Pentax K-r Specifications
Olympus E-400 | Pentax K-r | |
---|---|---|
General Information | ||
Make | Olympus | Pentax |
Model type | Olympus E-400 | Pentax K-r |
Type | Entry-Level DSLR | Entry-Level DSLR |
Launched | 2006-09-14 | 2011-03-11 |
Physical type | Compact SLR | Compact SLR |
Sensor Information | ||
Chip | - | Prime II |
Sensor type | CCD | CMOS |
Sensor size | Four Thirds | APS-C |
Sensor dimensions | 17.3 x 13mm | 23.6 x 15.8mm |
Sensor surface 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 | 12800 |
Max boosted ISO | - | 25600 |
Minimum native ISO | 100 | 200 |
RAW support | ||
Minimum boosted ISO | - | 100 |
Autofocusing | ||
Focus manually | ||
Touch focus | ||
Continuous autofocus | ||
Autofocus single | ||
Tracking autofocus | ||
Autofocus selectice | ||
Center weighted autofocus | ||
Autofocus multi area | ||
Live view autofocus | ||
Face detect focus | ||
Contract detect focus | ||
Phase detect focus | ||
Total focus points | 3 | 11 |
Cross type focus points | - | 9 |
Lens | ||
Lens support | Micro Four Thirds | Pentax KAF2 |
Amount of lenses | 45 | 151 |
Crop factor | 2.1 | 1.5 |
Screen | ||
Display type | Fixed Type | Fixed Type |
Display sizing | 2.5" | 3" |
Display resolution | 215 thousand dots | 921 thousand dots |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Display technology | - | TFT LCD monitor |
Viewfinder Information | ||
Viewfinder | Optical (pentamirror) | Optical (pentamirror) |
Viewfinder coverage | 95% | 96% |
Viewfinder magnification | 0.46x | 0.57x |
Features | ||
Lowest shutter speed | 60s | 30s |
Highest shutter speed | 1/4000s | 1/6000s |
Continuous shooting rate | 3.0 frames/s | 6.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | - | Yes |
Set white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | 10.00 m (at ISO 100) | 12.00 m (at ISO 100) |
Flash settings | Auto, Auto FP, Manual, Red-Eye | Auto, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, High-Speed Sync and Wireless Sync |
Hot shoe | ||
AE bracketing | ||
White balance bracketing | ||
Highest flash synchronize | - | 1/180s |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Video resolutions | - | 1280 x 720 (25 fps), 640 x 480 (25 fps) |
Max video resolution | None | 1280x720 |
Video data 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 | Optional |
Physical | ||
Environment sealing | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 435 grams (0.96 pounds) | 598 grams (1.32 pounds) |
Physical dimensions | 130 x 91 x 53mm (5.1" x 3.6" x 2.1") | 125 x 97 x 68mm (4.9" x 3.8" x 2.7") |
DXO scores | ||
DXO All around rating | not tested | 72 |
DXO Color Depth rating | not tested | 22.9 |
DXO Dynamic range rating | not tested | 12.4 |
DXO Low light rating | not tested | 755 |
Other | ||
Battery life | - | 470 photographs |
Style of battery | - | Battery Pack |
Battery ID | - | D-LI109,4 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 slots | 1 | 1 |
Pricing at launch | $599 | $1,100 |