Pentax K-50 vs Sony A390
63 Imaging
58 Features
65 Overall
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66 Imaging
54 Features
54 Overall
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Pentax K-50 vs Sony A390 Key Specs
(Full Review)
- 16MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 51600
- Sensor based Image Stabilization
- 1/6000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 650g - 130 x 97 x 71mm
- Introduced November 2013
- Older Model is Pentax K-30
(Full Review)
- 14MP - APS-C Sensor
- 2.7" Tilting Screen
- ISO 100 - 3200
- Sensor based Image Stabilization
- No Video
- Sony/Minolta Alpha Mount
- 549g - 128 x 97 x 86mm
- Revealed July 2010
- Previous Model is Sony A380

Pentax K-50 vs Sony A390 Overview
The following is a extended analysis of the Pentax K-50 vs Sony A390, both Entry-Level DSLR cameras by competitors Pentax and Sony. The image resolution of the K-50 (16MP) and the A390 (14MP) is pretty comparable and they enjoy the same exact sensor size (APS-C).

The K-50 was released 3 years after the A390 which is a fairly sizable gap as far as camera technology is concerned. Both of these cameras offer the identical body type (Compact SLR).
Before delving straight into a thorough comparison, below is a brief introduction of how the K-50 scores vs the A390 with regard to portability, imaging, features and an overall mark.

Pentax K-50 vs Sony A390 Gallery
This is a preview of the gallery images for Pentax K-50 and Sony Alpha DSLR-A390. The complete galleries are available at Pentax K-50 Gallery and Sony A390 Gallery.
Reasons to pick Pentax K-50 over the Sony A390
K-50 | A390 | |||
---|---|---|---|---|
Revealed | November 2013 | ![]() | July 2010 | Newer by 41 months |
Screen sizing | 3" | ![]() | 2.7" | Bigger screen (+0.3") |
Screen resolution | 921k | ![]() | 230k | Sharper screen (+691k dot) |
Reasons to pick Sony A390 over the Pentax K-50
A390 | K-50 | |||
---|---|---|---|---|
Screen type | Tilting | ![]() | Fixed | Tilting screen |
Common features in the Pentax K-50 and Sony A390
K-50 | A390 | |||
---|---|---|---|---|
Manual focus | ![]() | Very accurate focusing | ||
Selfie screen | ![]() | Neither provides selfie screen | ||
Touch screen | ![]() | No Touch screen |
Pentax K-50 vs Sony A390 Physical Comparison
For anybody who is planning to travel with your camera often, you should consider its weight and proportions. The Pentax K-50 provides outside measurements of 130mm x 97mm x 71mm (5.1" x 3.8" x 2.8") accompanied by a weight of 650 grams (1.43 lbs) whilst the Sony A390 has measurements of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") accompanied by a weight of 549 grams (1.21 lbs).
Check the Pentax K-50 vs Sony A390 in the latest Camera with Lens Size Comparison Tool.
Take into consideration, the weight of an Interchangeable Lens Camera will differ depending on the lens you are working with at that moment. The following is the front view dimensions comparison of the K-50 and the A390.

Taking into consideration dimensions and weight, the portability score of the K-50 and A390 is 63 and 66 respectively.

Pentax K-50 vs Sony A390 Sensor Comparison
More often than not, it is very difficult to visualise the gap in sensor dimensions merely by checking out specifications. The pic below might offer you a greater sense of the sensor sizing in the K-50 and A390.
To sum up, each of these cameras offer the same exact sensor sizing albeit not the same resolution. You should expect the Pentax K-50 to provide extra detail as a result of its extra 2MP. Higher resolution will make it easier to crop shots a little more aggressively. The more modern K-50 will have an edge with regard to sensor technology.

Pentax K-50 vs Sony A390 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-50 vs Sony A390 Specifications
Pentax K-50 | Sony Alpha DSLR-A390 | |
---|---|---|
General Information | ||
Brand Name | Pentax | Sony |
Model type | Pentax K-50 | Sony Alpha DSLR-A390 |
Category | Entry-Level DSLR | Entry-Level DSLR |
Introduced | 2013-11-27 | 2010-07-28 |
Body design | Compact SLR | Compact SLR |
Sensor Information | ||
Powered by | PRIME M | Bionz |
Sensor type | CMOS | CCD |
Sensor size | APS-C | APS-C |
Sensor measurements | 23.7 x 15.7mm | 23.5 x 15.7mm |
Sensor area | 372.1mm² | 369.0mm² |
Sensor resolution | 16 megapixel | 14 megapixel |
Anti alias filter | ||
Aspect ratio | 3:2 | 3:2 and 16:9 |
Highest Possible resolution | 4928 x 3264 | 4592 x 3056 |
Maximum native ISO | 51600 | 3200 |
Min native ISO | 100 | 100 |
RAW files | ||
Autofocusing | ||
Manual focusing | ||
Autofocus touch | ||
Continuous autofocus | ||
Autofocus single | ||
Tracking autofocus | ||
Selective autofocus | ||
Center weighted autofocus | ||
Autofocus multi area | ||
Autofocus live view | ||
Face detection autofocus | ||
Contract detection autofocus | ||
Phase detection autofocus | ||
Total focus points | 11 | 9 |
Cross type focus points | 9 | - |
Lens | ||
Lens support | Pentax KAF2 | Sony/Minolta Alpha |
Number of lenses | 151 | 143 |
Focal length multiplier | 1.5 | 1.5 |
Screen | ||
Range of screen | Fixed Type | Tilting |
Screen sizing | 3 inch | 2.7 inch |
Screen resolution | 921 thousand dot | 230 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch screen | ||
Screen tech | TFT LCD monitor with brightness/color adjustment and AR coating | - |
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | Optical (pentamirror) |
Viewfinder coverage | 100% | 95% |
Viewfinder magnification | 0.61x | 0.49x |
Features | ||
Minimum shutter speed | 30 secs | 30 secs |
Fastest shutter speed | 1/6000 secs | 1/4000 secs |
Continuous shutter speed | 6.0 frames per second | 3.0 frames per second |
Shutter priority | ||
Aperture priority | ||
Manual exposure | ||
Exposure compensation | Yes | Yes |
Custom white balance | ||
Image stabilization | ||
Integrated flash | ||
Flash distance | 12.00 m (at ISO 100) | 10.00 m (at ISO 100) |
Flash settings | Auto, On, Off, Red-eye, Slow Sync, Slow Sync+Redeye, Trailing Curtain Sync, Wireless | Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Wireless |
Hot shoe | ||
AE bracketing | ||
WB bracketing | ||
Fastest flash sync | 1/180 secs | 1/160 secs |
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 424 (30,25,24 fps) | - |
Maximum video resolution | 1920x1080 | None |
Video file format | MPEG-4, H.264 | - |
Microphone input | ||
Headphone input | ||
Connectivity | ||
Wireless | None | None |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | Optional | None |
Physical | ||
Environmental seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 650g (1.43 pounds) | 549g (1.21 pounds) |
Dimensions | 130 x 97 x 71mm (5.1" x 3.8" x 2.8") | 128 x 97 x 86mm (5.0" x 3.8" x 3.4") |
DXO scores | ||
DXO Overall rating | 79 | 66 |
DXO Color Depth rating | 23.7 | 22.5 |
DXO Dynamic range rating | 13.0 | 11.5 |
DXO Low light rating | 1120 | 607 |
Other | ||
Battery life | 410 pictures | 230 pictures |
Battery format | Battery Pack | Battery Pack |
Battery ID | D-LI109 | NP-FH50 |
Self timer | Yes ( 2 or 12 seconds) | Yes (2 or 10 sec) |
Time lapse feature | ||
Storage media | SD/SDHC/SDXC | SD/ SDHC, Memory Stick Pro Duo |
Storage slots | 1 | 1 |
Launch price | $610 | $500 |