Pentax K100D vs Sony A57
64 Imaging
45 Features
36 Overall
41
64 Imaging
57 Features
85 Overall
68
Pentax K100D vs Sony A57 Key Specs
(Full Review)
- 6MP - APS-C Sensor
- 2.5" Fixed Display
- ISO 200 - 3200
- Sensor based Image Stabilization
- No Video
- Pentax KAF Mount
- 660g - 129 x 93 x 70mm
- Launched December 2006
- New Model is Pentax K100D S
(Full Review)
Meta to Introduce 'AI-Generated' Labels for Media starting next month Pentax K100D vs Sony A57 Overview
Let's take a deeper look at the Pentax K100D vs Sony A57, both Entry-Level DSLR cameras by companies Pentax and Sony. There exists a large gap among the sensor resolutions of the K100D (6MP) and A57 (16MP) but they feature the same exact sensor size (APS-C).
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modesThe K100D was released 6 years before the A57 which is a fairly serious difference as far as camera technology is concerned. Both cameras offer the identical body type (Compact SLR).
Before diving through a step-by-step comparison, below is a simple summation of how the K100D scores versus the A57 in relation to portability, imaging, features and an overall mark.
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Following is a sample of the gallery pictures for Pentax K100D & Sony SLT-A57. The complete galleries are viewable at Pentax K100D Gallery & Sony A57 Gallery.
Reasons to pick Pentax K100D over the Sony A57
| K100D | A57 |
|---|
Reasons to pick Sony A57 over the Pentax K100D
| A57 | K100D | |||
|---|---|---|---|---|
| Announced | September 2012 |  | December 2006 | Newer by 70 months |
| Display type | Fully Articulated |  | Fixed | Fully Articulating display |
| Display sizing | 3" |  | 2.5" | Larger display (+0.5") |
| Display resolution | 921k |  | 210k | Clearer display (+711k dot) |
| Selfie screen |  | Easy selfies |
Common features in the Pentax K100D and Sony A57
| K100D | A57 | |||
|---|---|---|---|---|
| Manually focus |  | Dial precise focusing | ||
| Touch display |  | Neither features Touch display |
Pentax K100D vs Sony A57 Physical Comparison
When you are aiming to travel with your camera, you are going to need to take into account its weight and dimensions. The Pentax K100D enjoys exterior dimensions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") having a weight of 660 grams (1.46 lbs) and the Sony A57 has dimensions of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") with a weight of 618 grams (1.36 lbs).
Check the Pentax K100D vs Sony A57 in our newest Camera plus Lens Size Comparison Tool.
Remember, the weight of an ILC will vary depending on the lens you use during that time. Here is the front view proportions comparison of the K100D vs the A57.
Taking into account dimensions and weight, the portability rating of the K100D and A57 is 64 and 64 respectively.
Pentax K100D vs Sony A57 Sensor Comparison
More often than not, it can be tough to imagine the gap in sensor dimensions just by looking through technical specs. The pic underneath might give you a more clear sense of the sensor dimensions in the K100D and A57.
As you have seen, the two cameras enjoy the same exact sensor sizing but different megapixels. You can anticipate the Sony A57 to render greater detail as a result of its extra 10MP. Greater resolution can also allow you to crop pics far more aggressively. The more aged K100D will be behind in sensor tech.
Pentax K100D vs Sony A57 Screen and ViewFinder
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Pentax K100D vs Sony A57 Specifications
| Pentax K100D | Sony SLT-A57 | |
|---|---|---|
| General Information | ||
| Make | Pentax | Sony |
| Model | Pentax K100D | Sony SLT-A57 |
| Type | Entry-Level DSLR | Entry-Level DSLR |
| Launched | 2006-12-03 | 2012-09-13 |
| Body design | Compact SLR | Compact SLR |
| Sensor Information | ||
| Sensor type | CCD | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor measurements | 23.5 x 15.7mm | 23.5 x 15.6mm |
| Sensor area | 369.0mm² | 366.6mm² |
| Sensor resolution | 6 megapixels | 16 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 | 3:2 and 16:9 |
| Maximum resolution | 3008 x 2008 | 4912 x 3264 |
| Maximum native ISO | 3200 | 16000 |
| Maximum boosted ISO | - | 25600 |
| Lowest native ISO | 200 | 100 |
| RAW pictures | ||
| Autofocusing | ||
| Manual focus | ||
| Autofocus touch | ||
| Continuous autofocus | ||
| Single autofocus | ||
| Autofocus tracking | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Number of focus points | 11 | 15 |
| Cross focus points | - | 3 |
| Lens | ||
| Lens mounting type | Pentax KAF | Sony/Minolta Alpha |
| Available lenses | 151 | 143 |
| Focal length multiplier | 1.5 | 1.5 |
| Screen | ||
| Range of display | Fixed Type | Fully Articulated |
| Display diagonal | 2.5" | 3" |
| Resolution of display | 210k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch capability | ||
| Display tech | - | Xtra Fine TFT drive with TruBlack technology |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentamirror) | Electronic |
| Viewfinder resolution | - | 1,440k dot |
| Viewfinder coverage | 96 percent | 100 percent |
| Viewfinder magnification | 0.57x | 0.7x |
| Features | ||
| Slowest shutter speed | 30s | 30s |
| Maximum shutter speed | 1/4000s | 1/4000s |
| Continuous shooting speed | 3.0fps | 12.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash range | - | 10.00 m (@ ISO 100) |
| Flash options | 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 | ||
| Maximum flash sync | 1/180s | 1/160s |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Supported video resolutions | - | 1920 x 1080 (60p, 24p), 1440 x 1080 (30p), 640 x 480 (30 fps) |
| Maximum video resolution | None | 1920x1080 |
| Video file format | - | MPEG-4, AVCHD, H.264 |
| Microphone input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | None | Eye-Fi Connected |
| 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 | 660 grams (1.46 lbs) | 618 grams (1.36 lbs) |
| Dimensions | 129 x 93 x 70mm (5.1" x 3.7" x 2.8") | 132 x 98 x 81mm (5.2" x 3.9" x 3.2") |
| DXO scores | ||
| DXO All around score | not tested | 75 |
| DXO Color Depth score | not tested | 23.4 |
| DXO Dynamic range score | not tested | 13.0 |
| DXO Low light score | not tested | 785 |
| Other | ||
| Battery life | - | 550 pictures |
| Battery format | - | Battery Pack |
| Battery model | 4 x AA | NP-FM500H |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Storage media | SD/MMC card | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
| Storage slots | One | One |
| Retail cost | $0 | $1,000 |