Olympus PEN-F vs Pentax K-x
84 Imaging
58 Features
79 Overall
66
69 Imaging
51 Features
47 Overall
49
Olympus PEN-F vs Pentax K-x Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Screen
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Micro Four Thirds Mount
- 427g - 125 x 72 x 37mm
- Introduced January 2016
(Full Review)
- 12MP - APS-C Sensor
- 2.7" Fixed Screen
- ISO 100 - 6400 (Increase to 12800)
- Sensor based Image Stabilization
- 1/6000s Maximum Shutter
- 1280 x 720 video
- Pentax KAF2 Mount
- 580g - 123 x 92 x 68mm
- Introduced December 2009
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Below is a complete assessment of the Olympus PEN-F and Pentax K-x, former being a Advanced Mirrorless while the latter is a Entry-Level DSLR by companies Olympus and Pentax. There exists a noticeable gap between the resolutions of the PEN-F (20MP) and K-x (12MP) and the PEN-F (Four Thirds) and K-x (APS-C) posses different sensor sizing.
Sora from OpenAI releases its first ever music videoThe PEN-F was revealed 6 years later than the K-x and that is quite a sizable difference as far as technology is concerned. Each of the cameras have different body design with the Olympus PEN-F being a Rangefinder-style mirrorless camera and the Pentax K-x being a Compact SLR camera.
Before going into a thorough comparison, here is a quick summary of how the PEN-F grades against the K-x in terms of portability, imaging, features and an overall grade.
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Following is a preview of the gallery images for Olympus PEN-F & Pentax K-x. The full galleries are available at Olympus PEN-F Gallery & Pentax K-x Gallery.
Reasons to pick Olympus PEN-F over the Pentax K-x
| PEN-F | K-x | |||
|---|---|---|---|---|
| Introduced | January 2016 | December 2009 | More recent by 75 months | |
| Screen type | Fully Articulated | Fixed | Fully Articulating screen | |
| Screen dimensions | 3" | 2.7" | Bigger screen (+0.3") | |
| Screen resolution | 1037k | 230k | Clearer screen (+807k dot) | |
| Selfie screen | Take selfies | |||
| Touch friendly screen | Quickly navigate |
Reasons to pick Pentax K-x over the Olympus PEN-F
| K-x | PEN-F |
|---|
Common features in the Olympus PEN-F and Pentax K-x
| PEN-F | K-x | |||
|---|---|---|---|---|
| Manual focus | More accurate focus |
Olympus PEN-F vs Pentax K-x Physical Comparison
For anyone who is going to lug around your camera, you'll have to factor its weight and volume. The Olympus PEN-F enjoys external measurements of 125mm x 72mm x 37mm (4.9" x 2.8" x 1.5") along with a weight of 427 grams (0.94 lbs) and the Pentax K-x has sizing of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") along with a weight of 580 grams (1.28 lbs).
Compare the Olympus PEN-F and Pentax K-x in our brand new Camera & Lens Size Comparison Tool.
Remember, the weight of an ILC will change based on the lens you are using during that time. Following is a front view overall size comparison of the PEN-F and the K-x.

Taking into consideration dimensions and weight, the portability rating of the PEN-F and K-x is 84 and 69 respectively.
Olympus PEN-F vs Pentax K-x Sensor Comparison
Typically, its tough to picture the gap between sensor measurements just by looking at specs. The graphic below will help provide you a stronger sense of the sensor sizing in the PEN-F and K-x.
As you can plainly see, each of these cameras provide different resolutions and different sensor measurements. The PEN-F using its tinier sensor is going to make achieving shallower depth of field trickier and the Olympus PEN-F will resolve extra detail because of its extra 8 Megapixels. Higher resolution will also let you crop shots more aggressively. The more modern PEN-F should have an advantage in sensor innovation.
Olympus PEN-F vs Pentax K-x Screen and ViewFinder
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Olympus PEN-F vs Pentax K-x Specifications
| Olympus PEN-F | Pentax K-x | |
|---|---|---|
| General Information | ||
| Company | Olympus | Pentax |
| Model type | Olympus PEN-F | Pentax K-x |
| Class | Advanced Mirrorless | Entry-Level DSLR |
| Introduced | 2016-01-27 | 2009-12-23 |
| Body design | Rangefinder-style mirrorless | Compact SLR |
| Sensor Information | ||
| Processor | TruePic VII | Prime |
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | APS-C |
| Sensor measurements | 17.3 x 13mm | 23.6 x 15.8mm |
| Sensor surface area | 224.9mm² | 372.9mm² |
| Sensor resolution | 20 megapixel | 12 megapixel |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 |
| Highest Possible resolution | 5184 x 3888 | 4288 x 2848 |
| Maximum native ISO | 25600 | 6400 |
| Maximum enhanced ISO | - | 12800 |
| Minimum native ISO | 200 | 100 |
| RAW photos | ||
| Minimum enhanced ISO | 80 | - |
| Autofocusing | ||
| Manual focusing | ||
| Autofocus touch | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Autofocus tracking | ||
| Autofocus selectice | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detection autofocus | ||
| Contract detection autofocus | ||
| Phase detection autofocus | ||
| Total focus points | 81 | 11 |
| Lens | ||
| Lens support | Micro Four Thirds | Pentax KAF2 |
| Available lenses | 107 | 151 |
| Focal length multiplier | 2.1 | 1.5 |
| Screen | ||
| Range of screen | Fully Articulated | Fixed Type |
| Screen size | 3" | 2.7" |
| Resolution of screen | 1,037k dot | 230k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch friendly | ||
| Screen tech | - | TFT LCD monitor |
| Viewfinder Information | ||
| Viewfinder | Electronic | Optical (pentamirror) |
| Viewfinder resolution | 2,360k dot | - |
| Viewfinder coverage | 100 percent | 96 percent |
| Viewfinder magnification | 0.62x | 0.57x |
| Features | ||
| Min shutter speed | 60s | 30s |
| Max shutter speed | 1/8000s | 1/6000s |
| Max silent shutter speed | 1/16000s | - |
| Continuous shutter speed | 10.0 frames per second | 5.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | Yes | Yes |
| Custom white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | no built-in flash | 16.00 m |
| Flash settings | Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync (1st curtain), Slow sync (1st curtain), Slow sync (2nd curtain) | Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless |
| External flash | ||
| AE bracketing | ||
| WB bracketing | ||
| Max flash sync | - | 1/180s |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) | 1280 x 720 (24 fps), 640 x 416 (24 fps) |
| Maximum video resolution | 1920x1080 | 1280x720 |
| Video data format | MPEG-4, H.264, Motion JPEG | Motion JPEG |
| Microphone input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | Built-In | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environmental seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 427 gr (0.94 lbs) | 580 gr (1.28 lbs) |
| Physical dimensions | 125 x 72 x 37mm (4.9" x 2.8" x 1.5") | 123 x 92 x 68mm (4.8" x 3.6" x 2.7") |
| DXO scores | ||
| DXO Overall rating | 74 | 72 |
| DXO Color Depth rating | 23.1 | 22.8 |
| DXO Dynamic range rating | 12.4 | 12.5 |
| DXO Low light rating | 894 | 811 |
| Other | ||
| Battery life | 330 images | 1900 images |
| Battery format | Battery Pack | Battery Pack |
| Battery ID | BLN-1 | 4 x AA |
| Self timer | Yes (2 or 12 seconds, custom) | Yes (2 or 12 sec) |
| Time lapse feature | ||
| Storage media | SD/SDHC/SDXC | SD/SDHC card |
| Storage slots | One | One |
| Cost at release | $1,000 | $600 |