Pentax K-3 II vs Sigma SD9
59 Imaging
66 Features
84 Overall
73


54 Imaging
38 Features
27 Overall
33
Pentax K-3 II vs Sigma SD9 Key Specs
(Full Review)
- 24MP - APS-C Sensor
- 3.2" Fixed Screen
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 800g - 131 x 100 x 77mm
- Introduced April 2015
- Earlier Model is Pentax K-3
(Full Review)
- 3MP - APS-C Sensor
- 1.8" Fixed Display
- ISO 100 - 400
- 1/6000s Maximum Shutter
- No Video
- Sigma SA Mount
- 950g - 152 x 120 x 79mm
- Introduced November 2002
- Refreshed by Sigma SD10

Pentax K-3 II vs Sigma SD9 Overview
Here, we are analyzing the Pentax K-3 II and Sigma SD9, both Advanced DSLR digital cameras by companies Pentax and Sigma. There exists a substantial gap between the sensor resolutions of the K-3 II (24MP) and SD9 (3MP) but both cameras provide the identical sensor measurements (APS-C).

The K-3 II was announced 12 years later than the SD9 and that is quite a big difference as far as technology is concerned. The two cameras feature the same body design (Mid-size SLR).
Before we go straight to a in-depth comparison, here is a quick view of how the K-3 II scores versus the SD9 for portability, imaging, features and an overall grade.

Pentax K-3 II vs Sigma SD9 Gallery
Following is a sample of the gallery pictures for Pentax K-3 II & Sigma SD9. The whole galleries are viewable at Pentax K-3 II Gallery & Sigma SD9 Gallery.
Reasons to pick Pentax K-3 II over the Sigma SD9
K-3 II | SD9 | |||
---|---|---|---|---|
Introduced | April 2015 | ![]() | November 2002 | More recent by 152 months |
Display size | 3.2" | ![]() | 1.8" | Larger display (+1.4") |
Display resolution | 1037k | ![]() | 130k | Crisper display (+907k dot) |
Reasons to pick Sigma SD9 over the Pentax K-3 II
SD9 | K-3 II |
---|
Common features in the Pentax K-3 II and Sigma SD9
K-3 II | SD9 | |||
---|---|---|---|---|
Manual focus | ![]() | Very accurate focus | ||
Display type | Fixed | ![]() | Fixed | Fixed display |
Selfie screen | ![]() | Neither contains selfie screen | ||
Touch display | ![]() | Neither contains Touch display |
Pentax K-3 II vs Sigma SD9 Physical Comparison
If you're planning to lug around your camera frequently, you will have to think about its weight and proportions. The Pentax K-3 II has got external measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs) and the Sigma SD9 has measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") accompanied by a weight of 950 grams (2.09 lbs).
Examine the Pentax K-3 II and Sigma SD9 in our newest Camera plus Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will vary depending on the lens you select at that moment. Below is a front view measurements comparison of the K-3 II compared to the SD9.

Looking at dimensions and weight, the portability grade of the K-3 II and SD9 is 59 and 54 respectively.

Pentax K-3 II vs Sigma SD9 Sensor Comparison
More often than not, it is tough to visualise the contrast between sensor measurements just by looking at technical specs. The visual here should provide you a more clear sense of the sensor measurements in the K-3 II and SD9.
As you have seen, both of the cameras feature the identical sensor size but not the same resolution. You can anticipate the Pentax K-3 II to give more detail with its extra 21 Megapixels. Greater resolution can also enable you to crop pics way more aggressively. The newer K-3 II will have an edge with regard to sensor innovation.

Pentax K-3 II vs Sigma SD9 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-3 II vs Sigma SD9 Specifications
Pentax K-3 II | Sigma SD9 | |
---|---|---|
General Information | ||
Manufacturer | Pentax | Sigma |
Model type | Pentax K-3 II | Sigma SD9 |
Category | Advanced DSLR | Advanced DSLR |
Introduced | 2015-04-23 | 2002-11-26 |
Body design | Mid-size SLR | Mid-size SLR |
Sensor Information | ||
Processor Chip | Prime III | - |
Sensor type | CMOS | CMOS (Foveon X3) |
Sensor size | APS-C | APS-C |
Sensor dimensions | 23.5 x 15.6mm | 20.7 x 13.8mm |
Sensor surface area | 366.6mm² | 285.7mm² |
Sensor resolution | 24 megapixel | 3 megapixel |
Anti alias filter | ||
Aspect ratio | 3:2 | 3:2 |
Highest resolution | 6016 x 4000 | 2268 x 1512 |
Highest native ISO | 51200 | 400 |
Minimum native ISO | 100 | 100 |
RAW photos | ||
Autofocusing | ||
Focus manually | ||
Touch focus | ||
AF continuous | ||
Single AF | ||
Tracking AF | ||
AF selectice | ||
AF center weighted | ||
Multi area AF | ||
Live view AF | ||
Face detection focusing | ||
Contract detection focusing | ||
Phase detection focusing | ||
Total focus points | 27 | - |
Cross type focus points | 25 | - |
Lens | ||
Lens mount type | Pentax KAF2 | Sigma SA |
Total lenses | 151 | 76 |
Crop factor | 1.5 | 1.7 |
Screen | ||
Screen type | Fixed Type | Fixed Type |
Screen diagonal | 3.2 inches | 1.8 inches |
Resolution of screen | 1,037k dot | 130k dot |
Selfie friendly | ||
Liveview | ||
Touch capability | ||
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
Viewfinder coverage | 100 percent | 98 percent |
Viewfinder magnification | 0.64x | 0.77x |
Features | ||
Lowest shutter speed | 30 seconds | 30 seconds |
Highest shutter speed | 1/8000 seconds | 1/6000 seconds |
Continuous shooting speed | 8.3 frames per sec | - |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Custom WB | ||
Image stabilization | ||
Inbuilt flash | ||
Flash distance | no built-in flash | no built-in flash |
Flash modes | Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash) | - |
External flash | ||
Auto exposure bracketing | ||
WB bracketing | ||
Highest flash sync | 1/180 seconds | 1/180 seconds |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) | - |
Highest video resolution | 1920x1080 | None |
Video data format | MPEG-4, H.264 | - |
Mic input | ||
Headphone input | ||
Connectivity | ||
Wireless | Optional | None |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.0 (5 GBit/sec) | USB 1.0 (1.5 Mbit/sec) |
GPS | BuiltIn | None |
Physical | ||
Environment seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 800 grams (1.76 lbs) | 950 grams (2.09 lbs) |
Physical dimensions | 131 x 100 x 77mm (5.2" x 3.9" x 3.0") | 152 x 120 x 79mm (6.0" x 4.7" x 3.1") |
DXO scores | ||
DXO All around rating | 80 | not tested |
DXO Color Depth rating | 23.6 | not tested |
DXO Dynamic range rating | 13.6 | not tested |
DXO Low light rating | 1106 | not tested |
Other | ||
Battery life | 720 images | - |
Type of battery | Battery Pack | - |
Battery ID | D-LI90 | - |
Self timer | Yes ( 2 or 12 seconds) | Yes (10 sec) |
Time lapse recording | ||
Type of storage | Dual SD/SDHC/SDXC | Compact Flash Type I or II |
Storage slots | Dual | Single |
Launch pricing | $829 | $3,001 |