Pentax K-01 vs Sony A57
76 Imaging
56 Features
68 Overall
60


64 Imaging
57 Features
85 Overall
68
Pentax K-01 vs Sony A57 Key Specs
(Full Review)
- 16MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 12800 (Expand to 25600)
- Sensor based Image Stabilization
- 1920 x 1080 video
- Pentax KAF2 Mount
- 561g - 122 x 79 x 58mm
- Announced May 2012
(Full Review)

Pentax K-01 vs Sony A57 Overview
Its time to look a bit more closely at the Pentax K-01 vs Sony A57, former is a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by competitors Pentax and Sony. The sensor resolution of the K-01 (16MP) and the A57 (16MP) is pretty well matched and both cameras boast the identical sensor size (APS-C).

The K-01 was manufactured 3 months before the A57 which means that they are of a similar age. Both the cameras feature different body design with the Pentax K-01 being a SLR-style mirrorless camera and the Sony A57 being a Compact SLR camera.
Before delving straight to a step-by-step comparison, here is a quick introduction of how the K-01 matches up versus the A57 with respect to portability, imaging, features and an overall mark.

Pentax K-01 vs Sony A57 Gallery
Following is a preview of the gallery images for Pentax K-01 & Sony SLT-A57. The entire galleries are available at Pentax K-01 Gallery & Sony A57 Gallery.
Reasons to pick Pentax K-01 over the Sony A57
K-01 | A57 |
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Reasons to pick Sony A57 over the Pentax K-01
A57 | K-01 | |||
---|---|---|---|---|
Screen type | Fully Articulated | ![]() | Fixed | Fully Articulating screen |
Selfie screen | ![]() | Take selfies |
Common features in the Pentax K-01 and Sony A57
K-01 | A57 | |||
---|---|---|---|---|
Launched | May 2012 | ![]() | September 2012 | Similar age |
Manually focus | ![]() | More precise focusing | ||
Screen size | 3" | ![]() | 3" | Same screen size |
Screen resolution | 921k | ![]() | 921k | Identical screen resolution |
Touch friendly screen | ![]() | Lack of Touch friendly screen |
Pentax K-01 vs Sony A57 Physical Comparison
For anybody who is going to travel with your camera, you are going to need to factor in its weight and volume. The Pentax K-01 provides outer dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") having a weight of 561 grams (1.24 lbs) whilst the Sony A57 has sizing of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") having a weight of 618 grams (1.36 lbs).
Analyze the Pentax K-01 vs Sony A57 in our newest Camera & Lens Size Comparison Tool.
Do not forget, the weight of an ILC will vary based on the lens you select at that time. Underneath is a front view scale comparison of the K-01 against the A57.

Considering size and weight, the portability rating of the K-01 and A57 is 76 and 64 respectively.

Pentax K-01 vs Sony A57 Sensor Comparison
Usually, it is difficult to imagine the gap between sensor dimensions just by checking a spec sheet. The picture underneath will offer you a much better sense of the sensor sizes in the K-01 and A57.
Clearly, the 2 cameras come with the identical sensor size and the same exact resolution therefore you can expect similar quality of photos however you would want to factor the launch date of the products into consideration.

Pentax K-01 vs Sony A57 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-01 vs Sony A57 Specifications
Pentax K-01 | Sony SLT-A57 | |
---|---|---|
General Information | ||
Manufacturer | Pentax | Sony |
Model type | Pentax K-01 | Sony SLT-A57 |
Type | Entry-Level Mirrorless | Entry-Level DSLR |
Announced | 2012-05-30 | 2012-09-13 |
Physical type | SLR-style mirrorless | Compact SLR |
Sensor Information | ||
Sensor type | CMOS | CMOS |
Sensor size | APS-C | APS-C |
Sensor dimensions | 23.7 x 15.7mm | 23.5 x 15.6mm |
Sensor area | 372.1mm² | 366.6mm² |
Sensor resolution | 16 megapixels | 16 megapixels |
Anti alias filter | ||
Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
Full resolution | 4928 x 3264 | 4912 x 3264 |
Max native ISO | 12800 | 16000 |
Max boosted ISO | 25600 | 25600 |
Lowest native ISO | 100 | 100 |
RAW photos | ||
Autofocusing | ||
Manual focusing | ||
AF touch | ||
AF continuous | ||
Single AF | ||
Tracking AF | ||
Selective AF | ||
AF center weighted | ||
Multi area AF | ||
AF live view | ||
Face detection AF | ||
Contract detection AF | ||
Phase detection AF | ||
Total focus points | 81 | 15 |
Cross type focus points | - | 3 |
Lens | ||
Lens support | Pentax KAF2 | Sony/Minolta Alpha |
Available lenses | 151 | 143 |
Crop factor | 1.5 | 1.5 |
Screen | ||
Type of screen | Fixed Type | Fully Articulated |
Screen size | 3" | 3" |
Screen resolution | 921k dots | 921k dots |
Selfie friendly | ||
Liveview | ||
Touch functionality | ||
Screen technology | TFT LCD monitor | Xtra Fine TFT drive with TruBlack technology |
Viewfinder Information | ||
Viewfinder type | None | Electronic |
Viewfinder resolution | - | 1,440k dots |
Viewfinder coverage | - | 100 percent |
Viewfinder magnification | - | 0.7x |
Features | ||
Lowest shutter speed | 30s | 30s |
Highest shutter speed | 1/4000s | 1/4000s |
Continuous shooting rate | 6.0fps | 12.0fps |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Change WB | ||
Image stabilization | ||
Integrated flash | ||
Flash distance | 12.00 m (at ISO 100) | 10.00 m (@ ISO 100) |
Flash settings | Auto, On, Off, Red-eye, Slow-speed Sync, Trailing Curtain Sync | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
Hot shoe | ||
Auto exposure bracketing | ||
WB bracketing | ||
Highest flash synchronize | 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 (30, 25, 24 fps),1280 x 720 (60, 50, 30, 25, 24 fps), 640 x 480 (30, 25, 24 fps) | 1920 x 1080 (60p, 24p), 1440 x 1080 (30p), 640 x 480 (30 fps) |
Max video resolution | 1920x1080 | 1920x1080 |
Video data format | MPEG-4, H.264 | MPEG-4, AVCHD, H.264 |
Mic support | ||
Headphone support | ||
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 | ||
Environment sealing | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 561g (1.24 lb) | 618g (1.36 lb) |
Physical dimensions | 122 x 79 x 58mm (4.8" x 3.1" x 2.3") | 132 x 98 x 81mm (5.2" x 3.9" x 3.2") |
DXO scores | ||
DXO All around rating | 79 | 75 |
DXO Color Depth rating | 23.7 | 23.4 |
DXO Dynamic range rating | 12.9 | 13.0 |
DXO Low light rating | 1135 | 785 |
Other | ||
Battery life | 540 shots | 550 shots |
Style of battery | Battery Pack | Battery Pack |
Battery ID | D-LI90 | NP-FM500H |
Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
Time lapse recording | ||
Storage type | SD/SDHC/SDXC | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
Card slots | 1 | 1 |
Launch price | $899 | $1,000 |