Pentax K-3 III vs Sony FX30
58 Imaging
71 Features
86 Overall
77


64 Imaging
73 Features
92 Overall
80
Pentax K-3 III vs Sony FX30 Key Specs
(Full Review)
- 26MP - APS-C Sensor
- 3.2" Fixed Screen
- ISO 100 - 1600000
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 3840 x 2160 video
- Pentax KAF2 Mount
- 820g - 135 x 104 x 74mm
- Launched March 2021
(Full Review)
- 26MP - APS-C Sensor
- 3.00" Fully Articulated Screen
- ISO 100 - 32000 (Raise to 102400)
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 3840 x 2160 video
- Sony E Mount
- 646g - 130 x 78 x 85mm
- Announced September 2022

Pentax K-3 III vs Sony FX30 Overview
Its time to examine more in depth at the Pentax K-3 III vs Sony FX30, one is a Advanced DSLR and the latter is a Advanced Mirrorless by manufacturers Pentax and Sony. The resolution of the K-3 III (26MP) and the FX30 (26MP) is relatively close and they feature the exact same sensor sizing (APS-C).

The K-3 III was launched 18 months before the FX30 which makes the cameras a generation away from one another. Both cameras come with different body type with the Pentax K-3 III being a Mid-size SLR camera and the Sony FX30 being a Rangefinder-style mirrorless camera.
Before diving straight into a comprehensive comparison, below is a simple overview of how the K-3 III matches up against the FX30 with respect to portability, imaging, features and an overall mark.

Pentax K-3 III vs Sony FX30 Gallery
Following is a preview of the gallery photos for Pentax K-3 Mark III and Sony FX30. The complete galleries are viewable at Pentax K-3 III Gallery and Sony FX30 Gallery.
Reasons to pick Pentax K-3 III over the Sony FX30
K-3 III | FX30 | |||
---|---|---|---|---|
Screen dimension | 3.2" | ![]() | 3.00" | Bigger screen (+0.2") |
Reasons to pick Sony FX30 over the Pentax K-3 III
FX30 | K-3 III | |||
---|---|---|---|---|
Announced | September 2022 | ![]() | March 2021 | Newer by 18 months |
Screen type | Fully articulated | ![]() | Fixed | Fully Articulating screen |
Screen resolution | 2360k | ![]() | 1620k | Crisper screen (+740k dot) |
Selfie screen | ![]() | Easy selfies |
Common features in the Pentax K-3 III and Sony FX30
K-3 III | FX30 | |||
---|---|---|---|---|
Manual focus | ![]() | More exact focusing | ||
Touch screen | ![]() | Quickly navigate |
Pentax K-3 III vs Sony FX30 Physical Comparison
If you are looking to travel with your camera regularly, you are going to need to think about its weight and size. The Pentax K-3 III offers exterior dimensions of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") and a weight of 820 grams (1.81 lbs) whilst the Sony FX30 has specifications of 130mm x 78mm x 85mm (5.1" x 3.1" x 3.3") with a weight of 646 grams (1.42 lbs).
Check the Pentax K-3 III vs Sony FX30 in the all new Camera with Lens Size Comparison Tool.
Take into consideration, the weight of an Interchangeable Lens Camera will differ based on the lens you use at that time. Underneath is the front view proportions comparison of the K-3 III and the FX30.

Factoring in dimensions and weight, the portability score of the K-3 III and FX30 is 58 and 64 respectively.

Pentax K-3 III vs Sony FX30 Sensor Comparison
Quite often, it is very hard to picture the contrast in sensor dimensions only by looking through specifications. The pic here might provide you a far better sense of the sensor dimensions in the K-3 III and FX30.
Plainly, both of the cameras posses the exact same sensor measurements and the same megapixels so you should expect comparable quality of files though you might want to consider the release date of the cameras into account. The more aged K-3 III will be disadvantaged with regard to sensor innovation.

Pentax K-3 III vs Sony FX30 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-3 III vs Sony FX30 Specifications
Pentax K-3 Mark III | Sony FX30 | |
---|---|---|
General Information | ||
Company | Pentax | Sony |
Model | Pentax K-3 Mark III | Sony FX30 |
Category | Advanced DSLR | Advanced Mirrorless |
Launched | 2021-03-31 | 2022-09-28 |
Body design | Mid-size SLR | Rangefinder-style mirrorless |
Sensor Information | ||
Sensor type | CMOS | BSI-CMOS |
Sensor size | APS-C | APS-C |
Sensor measurements | 23 x 15.5mm | 23.5 x 15.6mm |
Sensor surface area | 356.5mm² | 366.6mm² |
Sensor resolution | 26MP | 26MP |
Anti aliasing filter | ||
Aspect ratio | 3:2 | 3:2 and 16:9 |
Maximum resolution | 6192 x 4128 | 6192 x 4128 |
Maximum native ISO | 1600000 | 32000 |
Maximum boosted ISO | - | 102400 |
Lowest native ISO | 100 | 100 |
RAW format | ||
Lowest boosted ISO | - | 50 |
Autofocusing | ||
Focus manually | ||
Autofocus touch | ||
Continuous autofocus | ||
Single autofocus | ||
Tracking autofocus | ||
Selective autofocus | ||
Center weighted autofocus | ||
Autofocus multi area | ||
Autofocus live view | ||
Face detection focus | ||
Contract detection focus | ||
Phase detection focus | ||
Number of focus points | 101 | 759 |
Cross focus points | 25 | - |
Lens | ||
Lens mounting type | Pentax KAF2 | Sony E |
Total lenses | 156 | 187 |
Crop factor | 1.6 | 1.5 |
Screen | ||
Screen type | Fixed Type | Fully articulated |
Screen size | 3.2" | 3.00" |
Screen resolution | 1,620 thousand dot | 2,360 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch screen | ||
Viewfinder Information | ||
Viewfinder type | Optical (pentaprism) | None |
Viewfinder coverage | 100% | - |
Viewfinder magnification | 0.7x | - |
Features | ||
Lowest shutter speed | 30 seconds | 30 seconds |
Highest shutter speed | 1/8000 seconds | 1/8000 seconds |
Continuous shooting speed | 12.0 frames/s | 10.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Custom white balance | ||
Image stabilization | ||
Integrated flash | ||
Flash range | no built-in flash | no built-in flash |
Flash settings | Auto, Auto + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow- speed Sync, Slow-speed Sync + Red-eye, P-TTL, Contrast-control-sync, High-speed sync, Wireless sync | no built-in flash |
Hot shoe | ||
Auto exposure bracketing | ||
White balance bracketing | ||
Highest flash sync | 1/200 seconds | - |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Video resolutions | 3840 x 2160 @ 30p, MOV, H.264, Linear PCM3840 x 2160 @ 24p, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 24p, MOV, H.264, Linear PCM | 3840 x 2160 @ 120p / 280 Mbps, XAVC HS, MP4, H.265, Linear PCM |
Maximum video resolution | 3840x2160 | 3840x2160 |
Video format | MPEG-4, H.264 | XAVC S, XAVC HS, XAVC S-I, H.264, H.265 |
Microphone input | ||
Headphone input | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.2 Gen 1 (5 GBit/sec) | USB 3.2 Gen 1 (5 GBit/sec) |
GPS | None | None |
Physical | ||
Environment seal | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 820 gr (1.81 pounds) | 646 gr (1.42 pounds) |
Dimensions | 135 x 104 x 74mm (5.3" x 4.1" x 2.9") | 130 x 78 x 85mm (5.1" x 3.1" x 3.3") |
DXO scores | ||
DXO All around score | not tested | not tested |
DXO Color Depth score | not tested | not tested |
DXO Dynamic range score | not tested | not tested |
DXO Low light score | not tested | not tested |
Other | ||
Battery life | 800 shots | 570 shots |
Type of battery | Battery Pack | Battery Pack |
Battery model | D-LI90 | NP-FZ100 |
Self timer | Yes | Yes |
Time lapse feature | ||
Type of storage | Dual SD/SDHC/SDXC slots (UHS-II supported in slot 1) | Dual SD/CFexpress Type A slots |
Storage slots | Dual | Dual |
Cost at launch | $1,999 | $1,800 |