Pentax WG-3 GPS vs Sony A57
90 Imaging
40 Features
43 Overall
41
64 Imaging
57 Features
85 Overall
68
Pentax WG-3 GPS vs Sony A57 Key Specs
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Screen
- ISO 125 - 6400
- Sensor-shift Image Stabilization
- 1920 x 1080 video
- 25-100mm (F2.0-4.9) lens
- 238g - 125 x 64 x 33mm
- Announced July 2013
(Full Review)
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Its time to look a bit more in depth at the Pentax WG-3 GPS vs Sony A57, one being a Waterproof and the latter is a Entry-Level DSLR by manufacturers Pentax and Sony. The image resolution of the WG-3 GPS (16MP) and the A57 (16MP) is relatively comparable but the WG-3 GPS (1/2.3") and A57 (APS-C) have different sensor dimensions.
Sora from OpenAI releases its first ever music videoThe WG-3 GPS was revealed 11 months later than the A57 so they are both of a similar generation. Both cameras feature different body design with the Pentax WG-3 GPS being a Compact camera and the Sony A57 being a Compact SLR camera.
Before we go straight to a comprehensive comparison, here is a brief summary of how the WG-3 GPS matches up against the A57 with regards to portability, imaging, features and an overall grade.
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The following is a preview of the gallery photos for Pentax WG-3 GPS and Sony SLT-A57. The full galleries are provided at Pentax WG-3 GPS Gallery and Sony A57 Gallery.
Reasons to pick Pentax WG-3 GPS over the Sony A57
| WG-3 GPS | A57 | |||
|---|---|---|---|---|
| Revealed | July 2013 |  | September 2012 | More recent by 11 months |
Reasons to pick Sony A57 over the Pentax WG-3 GPS
| A57 | WG-3 GPS | |||
|---|---|---|---|---|
| Screen type | Fully Articulated |  | Fixed | Fully Articulating screen |
| Screen resolution | 921k |  | 460k | Crisper screen (+461k dot) |
| Selfie screen |  | Take selfies |
Common features in the Pentax WG-3 GPS and Sony A57
| WG-3 GPS | A57 | |||
|---|---|---|---|---|
| Manually focus |  | More precise focus | ||
| Screen size | 3" |  | 3" | Same screen sizing |
| Touch screen |  | No Touch screen |
Pentax WG-3 GPS vs Sony A57 Physical Comparison
If you are looking to lug around your camera regularly, you need to factor in its weight and proportions. The Pentax WG-3 GPS has got physical measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs) and the Sony A57 has measurements of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") accompanied by a weight of 618 grams (1.36 lbs).
Check out the Pentax WG-3 GPS vs Sony A57 in the latest Camera and Lens Size Comparison Tool.
Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you choose at that time. The following is a front view physical size comparison of the WG-3 GPS compared to the A57.
Considering size and weight, the portability score of the WG-3 GPS and A57 is 90 and 64 respectively.
Pentax WG-3 GPS vs Sony A57 Sensor Comparison
Oftentimes, it's tough to imagine the contrast in sensor measurements just by going through technical specs. The graphic underneath will help give you a clearer sense of the sensor sizing in the WG-3 GPS and A57.
As you can tell, both cameras feature the identical resolution albeit different sensor measurements. The WG-3 GPS comes with the smaller sensor which should make obtaining shallow depth of field harder. The fresher WG-3 GPS should have a benefit in sensor innovation.
Pentax WG-3 GPS vs Sony A57 Screen and ViewFinder
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Pentax WG-3 GPS vs Sony A57 Specifications
| Pentax WG-3 GPS | Sony SLT-A57 | |
|---|---|---|
| General Information | ||
| Brand Name | Pentax | Sony |
| Model type | Pentax WG-3 GPS | Sony SLT-A57 |
| Category | Waterproof | Entry-Level DSLR |
| Announced | 2013-07-19 | 2012-09-13 |
| Body design | Compact | Compact SLR |
| Sensor Information | ||
| Sensor type | BSI-CMOS | CMOS |
| Sensor size | 1/2.3" | APS-C |
| Sensor dimensions | 6.17 x 4.55mm | 23.5 x 15.6mm |
| Sensor area | 28.1mm² | 366.6mm² |
| Sensor resolution | 16 megapixels | 16 megapixels |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3 and 16:9 | 3:2 and 16:9 |
| Highest Possible resolution | 4608 x 3456 | 4912 x 3264 |
| Maximum native ISO | 6400 | 16000 |
| Maximum enhanced ISO | - | 25600 |
| Min native ISO | 125 | 100 |
| RAW photos | ||
| Autofocusing | ||
| Focus manually | ||
| Autofocus touch | ||
| Autofocus continuous | ||
| Single autofocus | ||
| Tracking autofocus | ||
| Autofocus selectice | ||
| Autofocus center weighted | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detection focus | ||
| Contract detection focus | ||
| Phase detection focus | ||
| Total focus points | 9 | 15 |
| Cross type focus points | - | 3 |
| Lens | ||
| Lens support | fixed lens | Sony/Minolta Alpha |
| Lens zoom range | 25-100mm (4.0x) | - |
| Highest aperture | f/2.0-4.9 | - |
| Macro focusing distance | 1cm | - |
| Available lenses | - | 143 |
| Focal length multiplier | 5.8 | 1.5 |
| Screen | ||
| Screen type | Fixed Type | Fully Articulated |
| Screen sizing | 3 inches | 3 inches |
| Resolution of screen | 460 thousand dot | 921 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch friendly | ||
| Screen technology | Widescreen TFT color LCD with anti-reflective coating | Xtra Fine TFT drive with TruBlack technology |
| Viewfinder Information | ||
| Viewfinder type | None | Electronic |
| Viewfinder resolution | - | 1,440 thousand dot |
| Viewfinder coverage | - | 100% |
| Viewfinder magnification | - | 0.7x |
| Features | ||
| Minimum shutter speed | 4s | 30s |
| Fastest shutter speed | 1/4000s | 1/4000s |
| Continuous shutter speed | - | 12.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | - | Yes |
| Custom white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 3.40 m | 10.00 m (@ ISO 100) |
| Flash options | Auto, On, Off, Red-eye, Soft | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| Hot shoe | ||
| AE bracketing | ||
| White balance bracketing | ||
| Fastest flash sync | - | 1/160s |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps) | 1920 x 1080 (60p, 24p), 1440 x 1080 (30p), 640 x 480 (30 fps) |
| Maximum video resolution | 1920x1080 | 1920x1080 |
| Video format | MPEG-4, H.264 | MPEG-4, AVCHD, H.264 |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | Eye-Fi Connected |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | BuiltIn | None |
| Physical | ||
| Environmental seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 238 gr (0.52 lb) | 618 gr (1.36 lb) |
| Physical dimensions | 125 x 64 x 33mm (4.9" x 2.5" x 1.3") | 132 x 98 x 81mm (5.2" x 3.9" x 3.2") |
| DXO scores | ||
| DXO Overall rating | not tested | 75 |
| DXO Color Depth rating | not tested | 23.4 |
| DXO Dynamic range rating | not tested | 13.0 |
| DXO Low light rating | not tested | 785 |
| Other | ||
| Battery life | 240 photographs | 550 photographs |
| Battery form | Battery Pack | Battery Pack |
| Battery ID | D-LI92 | NP-FM500H |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/SDXC card, Internal | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
| Storage slots | Single | Single |
| Price at release | $350 | $1,000 |