Olympus E-400 vs Pentax K-7
77 Imaging
43 Features
31 Overall
38


60 Imaging
54 Features
69 Overall
60
Olympus E-400 vs Pentax K-7 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
- Released September 2006
- Newer Model is Olympus E-410
(Full Review)
- 15MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 2000 (Increase to 6400)
- Sensor based Image Stabilization
- 1/8000s Max Shutter
- 1280 x 720 video
- Pentax KAF2 Mount
- 750g - 131 x 97 x 73mm
- Released October 2009
- New Model is Pentax K-5

Olympus E-400 vs Pentax K-7 Overview
Lets examine more closely at the Olympus E-400 versus Pentax K-7, one being a Entry-Level DSLR and the latter is a Advanced DSLR by companies Olympus and Pentax. There is a huge difference between the sensor resolutions of the E-400 (10MP) and K-7 (15MP) and the E-400 (Four Thirds) and K-7 (APS-C) use different sensor dimensions.

The E-400 was brought out 4 years prior to the K-7 and that is quite a significant gap as far as tech is concerned. Each of these cameras come with different body type with the Olympus E-400 being a Compact SLR camera and the Pentax K-7 being a Mid-size SLR camera.
Before delving through a full comparison, below is a quick view of how the E-400 grades versus the K-7 with regard to portability, imaging, features and an overall rating.

Olympus E-400 vs Pentax K-7 Gallery
Here is a preview of the gallery photos for Olympus E-400 and Pentax K-7. The entire galleries are viewable at Olympus E-400 Gallery and Pentax K-7 Gallery.
Reasons to pick Olympus E-400 over the Pentax K-7
E-400 | K-7 |
---|
Reasons to pick Pentax K-7 over the Olympus E-400
K-7 | E-400 | |||
---|---|---|---|---|
Released | October 2009 | ![]() | September 2006 | Fresher by 37 months |
Screen dimension | 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-7
E-400 | K-7 | |||
---|---|---|---|---|
Manual focus | ![]() | Very precise focusing | ||
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Selfie screen | ![]() | Missing selfie screen | ||
Touch friendly screen | ![]() | Neither features Touch friendly screen |
Olympus E-400 vs Pentax K-7 Physical Comparison
In case you're planning to carry your camera, you are going to need to consider its weight and size. The Olympus E-400 enjoys exterior measurements of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") accompanied by a weight of 435 grams (0.96 lbs) and the Pentax K-7 has specifications of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") with a weight of 750 grams (1.65 lbs).
Check the Olympus E-400 versus Pentax K-7 in the latest Camera with Lens Size Comparison Tool.
Remember that, the weight of an Interchangeable Lens Camera will differ based on the lens you have attached at the time. Following is the front view proportions comparison of the E-400 compared to the K-7.

Taking into account size and weight, the portability score of the E-400 and K-7 is 77 and 60 respectively.

Olympus E-400 vs Pentax K-7 Sensor Comparison
In many cases, its difficult to imagine the contrast between sensor sizing purely by checking a spec sheet. The photograph here may provide you a much better sense of the sensor sizing in the E-400 and K-7.
Clearly, the two cameras posses different megapixel count and different sensor sizing. The E-400 featuring a tinier sensor is going to make getting shallow depth of field harder and the Pentax K-7 will give you extra detail having its extra 5MP. Higher resolution will allow you to crop photographs somewhat more aggressively. The older E-400 is going to be behind when it comes to sensor tech.

Olympus E-400 vs Pentax K-7 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Olympus E-400 vs Pentax K-7 Specifications
Olympus E-400 | Pentax K-7 | |
---|---|---|
General Information | ||
Brand Name | Olympus | Pentax |
Model type | Olympus E-400 | Pentax K-7 |
Class | Entry-Level DSLR | Advanced DSLR |
Released | 2006-09-14 | 2009-10-02 |
Physical type | Compact SLR | Mid-size SLR |
Sensor Information | ||
Chip | - | Prime II |
Sensor type | CCD | CMOS |
Sensor size | Four Thirds | APS-C |
Sensor measurements | 17.3 x 13mm | 23.4 x 15.6mm |
Sensor area | 224.9mm² | 365.0mm² |
Sensor resolution | 10MP | 15MP |
Anti alias filter | ||
Aspect ratio | 4:3 | 3:2 |
Highest resolution | 3648 x 2736 | 4672 x 3104 |
Highest native ISO | 1600 | 2000 |
Highest boosted ISO | - | 6400 |
Min native ISO | 100 | 100 |
RAW files | ||
Autofocusing | ||
Manual focusing | ||
Touch to focus | ||
Autofocus continuous | ||
Single autofocus | ||
Tracking autofocus | ||
Selective autofocus | ||
Autofocus center weighted | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detect focus | ||
Contract detect focus | ||
Phase detect 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 | ||
Type of display | Fixed Type | Fixed Type |
Display sizing | 2.5 inch | 3 inch |
Display resolution | 215 thousand dots | 921 thousand dots |
Selfie friendly | ||
Liveview | ||
Touch function | ||
Display tech | - | TFT color LCD with AR coating |
Viewfinder Information | ||
Viewfinder type | Optical (pentamirror) | Optical (pentaprism) |
Viewfinder coverage | 95% | 100% |
Viewfinder magnification | 0.46x | 0.61x |
Features | ||
Slowest shutter speed | 60 secs | 30 secs |
Maximum shutter speed | 1/4000 secs | 1/8000 secs |
Continuous shooting rate | 3.0fps | 5.0fps |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | - | Yes |
Custom white balance | ||
Image stabilization | ||
Inbuilt flash | ||
Flash distance | 10.00 m (at ISO 100) | 13.00 m |
Flash modes | Auto, Auto FP, Manual, Red-Eye | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain, Wireless |
External flash | ||
AE bracketing | ||
White balance bracketing | ||
Maximum flash synchronize | - | 1/180 secs |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Supported video resolutions | - | 1280 x 720 (30 fps), 1536 x 1024 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) |
Highest video resolution | None | 1280x720 |
Video format | - | Motion JPEG |
Microphone 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 | ||
Environment sealing | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 435 grams (0.96 lb) | 750 grams (1.65 lb) |
Dimensions | 130 x 91 x 53mm (5.1" x 3.6" x 2.1") | 131 x 97 x 73mm (5.2" x 3.8" x 2.9") |
DXO scores | ||
DXO All around rating | not tested | 61 |
DXO Color Depth rating | not tested | 22.6 |
DXO Dynamic range rating | not tested | 10.6 |
DXO Low light rating | not tested | 536 |
Other | ||
Battery life | - | 980 photographs |
Form of battery | - | Battery Pack |
Battery ID | - | D-LI90 |
Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
Time lapse shooting | ||
Storage type | Compact Flash (Type I or II), xD Picture Card | SD/SDHC/MMC |
Card slots | Single | Single |
Cost at launch | $599 | $599 |