Pentax K20D vs Sony A77 II
59 Imaging
53 Features
52 Overall
52
62 Imaging
65 Features
85 Overall
73
Pentax K20D vs Sony A77 II Key Specs
(Full Review)
- 15MP - APS-C Sensor
- 2.7" Fixed Display
- ISO 100 - 3200 (Increase to 6400)
- Sensor based Image Stabilization
- No Video
- Pentax KAF2 Mount
- 800g - 142 x 101 x 70mm
- Revealed June 2008
- Earlier Model is Pentax K10D
(Full Review)
- 24MP - APS-C Sensor
- 3" Fully Articulated Display
- ISO 50 - 25600
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 647g - 143 x 104 x 81mm
- Launched May 2014
- Superseded the Sony A77
Photography Glossary Pentax K20D vs Sony A77 II Overview
Following is a thorough assessment of the Pentax K20D versus Sony A77 II, both Advanced DSLR cameras by competitors Pentax and Sony. There exists a sizable gap among the image resolutions of the K20D (15MP) and A77 II (24MP) but they possess the same exact sensor size (APS-C).
Samsung Releases Faster Versions of EVO MicroSD CardsThe K20D was unveiled 6 years prior to the A77 II which is a fairly significant difference as far as camera technology is concerned. Both of the cameras offer the identical body type (Mid-size SLR).
Before we go in to a detailed comparison, below is a short summary of how the K20D grades vs the A77 II for portability, imaging, features and an overall score.
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Following is a sample of the gallery pics for Pentax K20D & Sony SLT-A77 II. The full galleries are available at Pentax K20D Gallery & Sony A77 II Gallery.
Reasons to pick Pentax K20D over the Sony A77 II
| K20D | A77 II |
|---|
Reasons to pick Sony A77 II over the Pentax K20D
| A77 II | K20D | |||
|---|---|---|---|---|
| Launched | May 2014 |  | June 2008 | More modern by 71 months |
| Display type | Fully Articulated |  | Fixed | Fully Articulating display |
| Display sizing | 3" |  | 2.7" | Larger display (+0.3") |
| Display resolution | 1229k |  | 230k | Clearer display (+999k dot) |
| Selfie screen |  | Easy selfies |
Common features in the Pentax K20D and Sony A77 II
| K20D | A77 II | |||
|---|---|---|---|---|
| Manual focus |  | Very precise focus | ||
| Touch friendly display |  | Neither offers Touch friendly display |
Pentax K20D vs Sony A77 II Physical Comparison
In case you're planning to carry around your camera frequently, you'll have to factor in its weight and size. The Pentax K20D offers physical measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs) while the Sony A77 II has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") having a weight of 647 grams (1.43 lbs).
Take a look at the Pentax K20D versus Sony A77 II in our brand new Camera & Lens Size Comparison Tool.
Keep in mind, the weight of an ILC will change depending on the lens you have attached at the time. Below is the front view scale comparison of the K20D and the A77 II.
Taking into account dimensions and weight, the portability score of the K20D and A77 II is 59 and 62 respectively.
Pentax K20D vs Sony A77 II Sensor Comparison
Normally, it can be tough to see the gap in sensor sizes only by checking out a spec sheet. The pic underneath may provide you a far better sense of the sensor measurements in the K20D and A77 II.
Clearly, both of these cameras offer the same exact sensor sizing but not the same megapixels. You can expect to see the Sony A77 II to provide extra detail having an extra 9MP. Greater resolution will enable you to crop pics a little more aggressively. The more aged K20D will be disadvantaged in sensor tech.
Pentax K20D vs Sony A77 II Screen and ViewFinder
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Pentax K20D vs Sony A77 II Specifications
| Pentax K20D | Sony SLT-A77 II | |
|---|---|---|
| General Information | ||
| Make | Pentax | Sony |
| Model type | Pentax K20D | Sony SLT-A77 II |
| Category | Advanced DSLR | Advanced DSLR |
| Revealed | 2008-06-25 | 2014-05-21 |
| Body design | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Chip | - | Bionz X |
| Sensor type | CMOS | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor measurements | 23.4 x 15.6mm | 23.5 x 15.6mm |
| Sensor area | 365.0mm² | 366.6mm² |
| Sensor resolution | 15MP | 24MP |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 3:2 and 16:9 |
| Highest resolution | 4672 x 3104 | 6000 x 4000 |
| Highest native ISO | 3200 | 25600 |
| Highest boosted ISO | 6400 | - |
| Min native ISO | 100 | 50 |
| RAW files | ||
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| AF continuous | ||
| AF single | ||
| Tracking AF | ||
| Selective AF | ||
| AF center weighted | ||
| Multi area AF | ||
| AF live view | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 11 | 79 |
| Cross type focus points | - | 15 |
| Lens | ||
| Lens mount type | Pentax KAF2 | Sony/Minolta Alpha |
| Amount of lenses | 151 | 143 |
| Crop factor | 1.5 | 1.5 |
| Screen | ||
| Display type | Fixed Type | Fully Articulated |
| Display sizing | 2.7 inches | 3 inches |
| Resolution of display | 230 thousand dot | 1,229 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359 thousand dot |
| Viewfinder coverage | 95% | 100% |
| Viewfinder magnification | 0.64x | 0.73x |
| Features | ||
| Lowest shutter speed | 30 seconds | 30 seconds |
| Highest shutter speed | 1/4000 seconds | 1/8000 seconds |
| Continuous shooting speed | 3.0fps | 12.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | 13.00 m (at ISO 100) | 12.00 m (at ISO 100) |
| Flash settings | Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless | Auto, fill, rear sync, slow sync |
| External flash | ||
| AEB | ||
| WB bracketing | ||
| Highest flash sync | 1/180 seconds | 1/250 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | - | 1920 x 1080 (60p, 60i, 30p), 1440 x 1080 (30p), 640 x 480 (30p) |
| Highest video resolution | None | 1920x1080 |
| Video file format | - | MPEG-4, AVCHD, XAVC S |
| Microphone jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | None | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 800 grams (1.76 lbs) | 647 grams (1.43 lbs) |
| Dimensions | 142 x 101 x 70mm (5.6" x 4.0" x 2.8") | 143 x 104 x 81mm (5.6" x 4.1" x 3.2") |
| DXO scores | ||
| DXO All around rating | 65 | 82 |
| DXO Color Depth rating | 22.9 | 24.4 |
| DXO Dynamic range rating | 11.1 | 13.4 |
| DXO Low light rating | 639 | 1013 |
| Other | ||
| Battery life | - | 480 photographs |
| Style of battery | - | Battery Pack |
| Battery ID | D-LI50 | NP-FM500H |
| Self timer | Yes (2 or 10 sec) | Yes (Yes (2 or 12 sec)) |
| Time lapse feature | ||
| Type of storage | SD/MMC/SDHC card | SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo |
| Storage slots | 1 | 1 |
| Retail price | $700 | $1,198 |