Olympus 550WP vs Pentax K-x
94 Imaging
32 Features
17 Overall
26
69 Imaging
51 Features
47 Overall
49
Olympus 550WP vs Pentax K-x Key Specs
(Full Review)
- 10MP - 1/2.3" Sensor
- 2.5" Fixed Display
- ISO 64 - 1600
- Digital Image Stabilization
- 640 x 480 video
- 38-114mm (F3.5-5.0) lens
- 167g - 94 x 62 x 22mm
- Revealed January 2009
- Also referred to as mju 550WP
(Full Review)
- 12MP - APS-C Sensor
- 2.7" Fixed Display
- ISO 100 - 6400 (Push 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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On this page, we are analyzing the Olympus 550WP and Pentax K-x, former is a Small Sensor Compact while the other is a Entry-Level DSLR by rivals Olympus and Pentax. The sensor resolution of the 550WP (10MP) and the K-x (12MP) is fairly close but the 550WP (1/2.3") and K-x (APS-C) boast different sensor sizes.
Samsung Releases Faster Versions of EVO MicroSD CardsThe 550WP was unveiled 11 months before the K-x so they are of a similar age. Both of the cameras have different body design with the Olympus 550WP being a Compact camera and the Pentax K-x being a Compact SLR camera.
Before going straight to a in-depth comparison, here is a brief synopsis of how the 550WP scores versus the K-x for portability, imaging, features and an overall score.
Photography Glossary Olympus 550WP vs Pentax K-x Gallery
Following is a sample of the gallery pictures for Olympus Stylus 550WP & Pentax K-x. The full galleries are viewable at Olympus 550WP Gallery & Pentax K-x Gallery.
Reasons to pick Olympus 550WP over the Pentax K-x
| 550WP | K-x |
|---|
Reasons to pick Pentax K-x over the Olympus 550WP
| K-x | 550WP | |||
|---|---|---|---|---|
| Revealed | December 2009 | January 2009 | More modern by 11 months | |
| Focus manually | More accurate focus | |||
| Display dimensions | 2.7" | 2.5" | Larger display (+0.2") |
Common features in the Olympus 550WP and Pentax K-x
| 550WP | K-x | |||
|---|---|---|---|---|
| Display type | Fixed | Fixed | Fixed display | |
| Display resolution | 230k | 230k | The same display resolution | |
| Selfie screen | Neither has selfie screen | |||
| Touch display | Neither has Touch display |
Olympus 550WP vs Pentax K-x Physical Comparison
If you're going to carry around your camera, you are going to need to consider its weight and size. The Olympus 550WP has physical measurements of 94mm x 62mm x 22mm (3.7" x 2.4" x 0.9") accompanied by a weight of 167 grams (0.37 lbs) and 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).
Check out the Olympus 550WP and Pentax K-x in our newest Camera & Lens Size Comparison Tool.
Take into account, the weight of an ILC will vary dependant on the lens you are utilising at the time. Underneath is a front view sizing comparison of the 550WP and the K-x.

Using dimensions and weight, the portability grade of the 550WP and K-x is 94 and 69 respectively.
Olympus 550WP vs Pentax K-x Sensor Comparison
Normally, it is difficult to picture the contrast in sensor sizes just by looking through technical specs. The picture underneath will provide you a much better sense of the sensor sizing in the 550WP and K-x.
As you can tell, both of the cameras provide different megapixel count and different sensor sizes. The 550WP having a smaller sensor is going to make achieving shallow DOF more difficult and the Pentax K-x will render greater detail having an extra 2 Megapixels. Greater resolution will also make it easier to crop pics more aggressively. The more aged 550WP will be behind in sensor innovation.
Olympus 550WP vs Pentax K-x Screen and ViewFinder
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Olympus 550WP vs Pentax K-x Specifications
| Olympus Stylus 550WP | Pentax K-x | |
|---|---|---|
| General Information | ||
| Manufacturer | Olympus | Pentax |
| Model | Olympus Stylus 550WP | Pentax K-x |
| Also called | mju 550WP | - |
| Class | Small Sensor Compact | Entry-Level DSLR |
| Revealed | 2009-01-07 | 2009-12-23 |
| Body design | Compact | Compact SLR |
| Sensor Information | ||
| Chip | - | Prime |
| Sensor type | CCD | CMOS |
| Sensor size | 1/2.3" | APS-C |
| Sensor measurements | 6.08 x 4.56mm | 23.6 x 15.8mm |
| Sensor surface area | 27.7mm² | 372.9mm² |
| Sensor resolution | 10 megapixel | 12 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 16:9, 4:3 and 3:2 | 3:2 |
| Max resolution | 3648 x 2736 | 4288 x 2848 |
| Max native ISO | 1600 | 6400 |
| Max enhanced ISO | - | 12800 |
| Minimum native ISO | 64 | 100 |
| RAW support | ||
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| Continuous AF | ||
| AF single | ||
| AF tracking | ||
| AF selectice | ||
| AF center weighted | ||
| AF multi area | ||
| Live view AF | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Number of focus points | - | 11 |
| Lens | ||
| Lens mounting type | fixed lens | Pentax KAF2 |
| Lens focal range | 38-114mm (3.0x) | - |
| Largest aperture | f/3.5-5.0 | - |
| Macro focus range | 7cm | - |
| Amount of lenses | - | 151 |
| Focal length multiplier | 5.9 | 1.5 |
| Screen | ||
| Display type | Fixed Type | Fixed Type |
| Display size | 2.5 inches | 2.7 inches |
| Resolution of display | 230 thousand dot | 230 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Display tech | - | TFT LCD monitor |
| Viewfinder Information | ||
| Viewfinder type | None | Optical (pentamirror) |
| Viewfinder coverage | - | 96% |
| Viewfinder magnification | - | 0.57x |
| Features | ||
| Min shutter speed | 4s | 30s |
| Max shutter speed | 1/1000s | 1/6000s |
| Continuous shutter speed | - | 5.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | - | Yes |
| Change WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | - | 16.00 m |
| Flash settings | Auto, Fill-in, Red-Eye reduction, Off, On | Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless |
| External flash | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Max flash sync | - | 1/180s |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) | 1280 x 720 (24 fps), 640 x 416 (24 fps) |
| Max video resolution | 640x480 | 1280x720 |
| Video data format | Motion JPEG | 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 | ||
| Environmental seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 167 gr (0.37 pounds) | 580 gr (1.28 pounds) |
| Physical dimensions | 94 x 62 x 22mm (3.7" x 2.4" x 0.9") | 123 x 92 x 68mm (4.8" x 3.6" x 2.7") |
| DXO scores | ||
| DXO Overall score | not tested | 72 |
| DXO Color Depth score | not tested | 22.8 |
| DXO Dynamic range score | not tested | 12.5 |
| DXO Low light score | not tested | 811 |
| Other | ||
| Battery life | - | 1900 shots |
| Form of battery | - | Battery Pack |
| Battery model | - | 4 x AA |
| Self timer | Yes (12 seconds) | Yes (2 or 12 sec) |
| Time lapse feature | ||
| Storage media | xD-Picture Card, microSD, internal | SD/SDHC card |
| Storage slots | Single | Single |
| Cost at release | $399 | $600 |