Pentax K100D S vs Sony A550
65 Imaging
45 Features
38 Overall
42
63 Imaging
53 Features
65 Overall
57
Pentax K100D S vs Sony A550 Key Specs
(Full Review)
- 6MP - APS-C Sensor
- 2.5" Fixed Display
- ISO 200 - 3200
- Sensor based Image Stabilization
- No Video
- Pentax KAF2 Mount
- 646g - 129 x 91 x 71mm
- Announced June 2007
- Earlier Model is Pentax K100D
- Successor is Pentax K200D
(Full Review)
- 14MP - APS-C Sensor
- 3" Tilting Screen
- ISO 200 - 12800
- Sensor based Image Stabilization
- No Video
- Sony/Minolta Alpha Mount
- 632g - 137 x 104 x 84mm
- Released December 2009
- Superseded the Sony A100
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Lets examine more in depth at the Pentax K100D S vs Sony A550, both Entry-Level DSLR cameras by companies Pentax and Sony. There is a significant difference among the image resolutions of the K100D S (6MP) and A550 (14MP) but they feature the exact same sensor sizing (APS-C).
Sora from OpenAI releases its first ever music videoThe K100D S was released 3 years earlier than the A550 and that is a fairly sizable gap as far as camera tech is concerned. Both of these cameras come with the identical body type (Compact SLR).
Before getting through a more detailed comparison, below is a simple overview of how the K100D S scores versus the A550 in relation to portability, imaging, features and an overall grade.
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The following is a preview of the gallery photos for Pentax K100D Super and Sony Alpha DSLR-A550. The complete galleries are viewable at Pentax K100D S Gallery and Sony A550 Gallery.
Reasons to pick Pentax K100D S over the Sony A550
| K100D S | A550 |
|---|
Reasons to pick Sony A550 over the Pentax K100D S
| A550 | K100D S | |||
|---|---|---|---|---|
| Released | December 2009 |  | June 2007 | More recent by 29 months |
| Screen type | Tilting |  | Fixed | Tilting screen |
| Screen dimension | 3" |  | 2.5" | Bigger screen (+0.5") |
| Screen resolution | 922k |  | 210k | Crisper screen (+712k dot) |
Common features in the Pentax K100D S and Sony A550
| K100D S | A550 | |||
|---|---|---|---|---|
| Focus manually |  | More precise focusing | ||
| Selfie screen |  | No selfie screen | ||
| Touch friendly screen |  | Neither features Touch friendly screen |
Pentax K100D S vs Sony A550 Physical Comparison
In case you're going to lug around your camera regularly, you need to factor its weight and volume. The Pentax K100D S enjoys outer dimensions of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs) while the Sony A550 has sizing of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") along with a weight of 632 grams (1.39 lbs).
Analyze the Pentax K100D S vs Sony A550 in the new Camera and Lens Size Comparison Tool.
Take into account, the weight of an Interchangeable Lens Camera will differ depending on the lens you use during that time. Below is the front view proportions comparison of the K100D S against the A550.
Considering size and weight, the portability grade of the K100D S and A550 is 65 and 63 respectively.
Pentax K100D S vs Sony A550 Sensor Comparison
Usually, it's difficult to picture the contrast in sensor measurements only by going through a spec sheet. The graphic here will provide you a far better sense of the sensor dimensions in the K100D S and A550.
As you can see, the 2 cameras have got the exact same sensor measurements albeit different MP. You should count on the Sony A550 to show extra detail as a result of its extra 8MP. Higher resolution will help you crop shots much more aggressively. The older K100D S will be disadvantaged when it comes to sensor tech.
Pentax K100D S vs Sony A550 Screen and ViewFinder
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Pentax K100D S vs Sony A550 Specifications
| Pentax K100D Super | Sony Alpha DSLR-A550 | |
|---|---|---|
| General Information | ||
| Make | Pentax | Sony |
| Model type | Pentax K100D Super | Sony Alpha DSLR-A550 |
| Type | Entry-Level DSLR | Entry-Level DSLR |
| Announced | 2007-06-28 | 2009-12-09 |
| Physical type | Compact SLR | Compact SLR |
| Sensor Information | ||
| Processor Chip | - | Bionz |
| Sensor type | CCD | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor dimensions | 23.5 x 15.7mm | 23.4 x 15.6mm |
| Sensor surface area | 369.0mm² | 365.0mm² |
| Sensor resolution | 6 megapixels | 14 megapixels |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 3:2 and 16:9 |
| Highest resolution | 3008 x 2008 | 4592 x 3056 |
| Highest native ISO | 3200 | 12800 |
| Minimum native ISO | 200 | 200 |
| RAW data | ||
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| Continuous AF | ||
| Single AF | ||
| AF tracking | ||
| AF selectice | ||
| Center weighted AF | ||
| AF multi area | ||
| Live view AF | ||
| Face detect focusing | ||
| Contract detect focusing | ||
| Phase detect focusing | ||
| Total focus points | 11 | 9 |
| Lens | ||
| Lens mount type | Pentax KAF2 | Sony/Minolta Alpha |
| Total lenses | 151 | 143 |
| Focal length multiplier | 1.5 | 1.5 |
| Screen | ||
| Display type | Fixed Type | Tilting |
| Display diagonal | 2.5 inch | 3 inch |
| Display resolution | 210k dots | 922k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder type | Optical (pentamirror) | Optical (pentamirror) |
| Viewfinder coverage | 96 percent | 95 percent |
| Viewfinder magnification | 0.57x | 0.53x |
| Features | ||
| Lowest shutter speed | 30 seconds | 30 seconds |
| Highest shutter speed | 1/4000 seconds | 1/4000 seconds |
| Continuous shooting rate | 3.0 frames/s | 7.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | - | 12.00 m |
| Flash modes | Auto, On, Off, Red-eye reduction | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| Hot shoe | ||
| AE bracketing | ||
| White balance bracketing | ||
| Highest flash synchronize | 1/180 seconds | 1/160 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Highest video resolution | None | None |
| Mic support | ||
| Headphone support | ||
| 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 proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 646g (1.42 pounds) | 632g (1.39 pounds) |
| Dimensions | 129 x 91 x 71mm (5.1" x 3.6" x 2.8") | 137 x 104 x 84mm (5.4" x 4.1" x 3.3") |
| DXO scores | ||
| DXO All around rating | not tested | 66 |
| DXO Color Depth rating | not tested | 21.9 |
| DXO Dynamic range rating | not tested | 11.8 |
| DXO Low light rating | not tested | 807 |
| Other | ||
| Battery life | - | 480 pictures |
| Battery style | - | Battery Pack |
| Battery ID | 4 x AA | NP-FM500H |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Type of storage | SD/SDHC card | SD/ SDHC, Memory Stick Pro Duo/ Pro-HG Duo |
| Card slots | 1 | 1 |
| Price at launch | $520 | $749 |