Pentax K-3 II vs Sigma SD15
59 Imaging
66 Features
84 Overall
73
59 Imaging
44 Features
45 Overall
44
Pentax K-3 II vs Sigma SD15 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 Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 800g - 131 x 100 x 77mm
- Announced April 2015
- Replaced the Pentax K-3
(Full Review)
- 5MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 1600 (Push to 3200)
- No Video
- Sigma SA Mount
- 750g - 144 x 107 x 81mm
- Introduced February 2010
- Superseded the Sigma SD14
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Below, we will be reviewing the Pentax K-3 II vs Sigma SD15, both Advanced DSLR digital cameras by manufacturers Pentax and Sigma. There is a substantial difference between the image resolutions of the K-3 II (24MP) and SD15 (5MP) but they possess the exact same sensor sizing (APS-C).
Photography GlossaryThe K-3 II was unveiled 5 years after the SD15 which is quite a big difference as far as tech is concerned. Both the cameras come with the identical body type (Mid-size SLR).
Before getting through a more detailed comparison, below is a short overview of how the K-3 II scores against the SD15 in regards to portability, imaging, features and an overall mark.
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The following is a preview of the gallery photos for Pentax K-3 II & Sigma SD15. The full galleries are viewable at Pentax K-3 II Gallery & Sigma SD15 Gallery.
Reasons to pick Pentax K-3 II over the Sigma SD15
| K-3 II | SD15 | |||
|---|---|---|---|---|
| Introduced | April 2015 |  | February 2010 | Newer by 63 months |
| Screen dimension | 3.2" |  | 3" | Bigger screen (+0.2") |
| Screen resolution | 1037k |  | 460k | Sharper screen (+577k dot) |
Reasons to pick Sigma SD15 over the Pentax K-3 II
| SD15 | K-3 II |
|---|
Common features in the Pentax K-3 II and Sigma SD15
| K-3 II | SD15 | |||
|---|---|---|---|---|
| Manual focus |  | More precise focus | ||
| Screen type | Fixed |  | Fixed | Fixed screen |
| Selfie screen |  | Lack of selfie screen | ||
| Touch friendly screen |  | Neither comes with Touch friendly screen |
Pentax K-3 II vs Sigma SD15 Physical Comparison
For anyone who is intending to travel with your camera regularly, you're going to have to factor its weight and size. The Pentax K-3 II comes with outer dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs) while the Sigma SD15 has specifications of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") having a weight of 750 grams (1.65 lbs).
Check out the Pentax K-3 II vs Sigma SD15 in our brand new Camera plus Lens Size Comparison Tool.
Always remember, the weight of an ILC will differ depending on the lens you are utilizing during that time. Underneath is the front view measurement comparison of the K-3 II versus the SD15.
Looking at size and weight, the portability score of the K-3 II and SD15 is 59 and 59 respectively.
Pentax K-3 II vs Sigma SD15 Sensor Comparison
Usually, its difficult to see the gap between sensor dimensions only by looking at specs. The picture here should provide you a more clear sense of the sensor sizes in the K-3 II and SD15.
All in all, both the cameras posses the exact same sensor measurements albeit not the same resolution. You can count on the Pentax K-3 II to give extra detail having an extra 19MP. Higher resolution can also help you crop photographs somewhat more aggressively. The younger K-3 II will have an edge when it comes to sensor innovation.
Pentax K-3 II vs Sigma SD15 Screen and ViewFinder
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Pentax K-3 II vs Sigma SD15 Specifications
| Pentax K-3 II | Sigma SD15 | |
|---|---|---|
| General Information | ||
| Make | Pentax | Sigma |
| Model | Pentax K-3 II | Sigma SD15 |
| Class | Advanced DSLR | Advanced DSLR |
| Announced | 2015-04-23 | 2010-02-20 |
| Body design | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Processor Chip | Prime III | True II |
| Sensor type | CMOS | CMOS (Foveon X3) |
| Sensor size | APS-C | APS-C |
| Sensor measurements | 23.5 x 15.6mm | 20.7 x 13.8mm |
| Sensor surface area | 366.6mm² | 285.7mm² |
| Sensor resolution | 24 megapixels | 5 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 | 3:2 |
| Max resolution | 6016 x 4000 | 2640 x 1760 |
| Max native ISO | 51200 | 1600 |
| Max enhanced ISO | - | 3200 |
| Minimum native ISO | 100 | 100 |
| RAW pictures | ||
| Minimum enhanced ISO | - | 50 |
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| Continuous autofocus | ||
| Single autofocus | ||
| Autofocus tracking | ||
| Selective autofocus | ||
| Autofocus center weighted | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detection autofocus | ||
| Contract detection autofocus | ||
| Phase detection autofocus | ||
| Number of focus points | 27 | - |
| Cross focus points | 25 | - |
| Lens | ||
| Lens mounting 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" | 3" |
| Screen resolution | 1,037 thousand dot | 460 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
| Viewfinder coverage | 100% | 96% |
| Viewfinder magnification | 0.64x | 0.6x |
| Features | ||
| Minimum shutter speed | 30 seconds | 30 seconds |
| Fastest shutter speed | 1/8000 seconds | 1/4000 seconds |
| Continuous shutter speed | 8.3 frames/s | 3.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Custom white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | 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) | - |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Fastest flash sync | 1/180 seconds | 1/180 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) | - |
| Max video resolution | 1920x1080 | None |
| Video format | MPEG-4, H.264 | - |
| Microphone jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Optional | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 3.0 (5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | BuiltIn | None |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 800 grams (1.76 lb) | 750 grams (1.65 lb) |
| Dimensions | 131 x 100 x 77mm (5.2" x 3.9" x 3.0") | 144 x 107 x 81mm (5.7" x 4.2" x 3.2") |
| DXO scores | ||
| DXO Overall score | 80 | not tested |
| DXO Color Depth score | 23.6 | not tested |
| DXO Dynamic range score | 13.6 | not tested |
| DXO Low light score | 1106 | not tested |
| Other | ||
| Battery life | 720 images | - |
| Type of battery | Battery Pack | - |
| Battery model | D-LI90 | - |
| Self timer | Yes ( 2 or 12 seconds) | Yes (10 sec) |
| Time lapse recording | ||
| Type of storage | Dual SD/SDHC/SDXC | SD/SDHC card |
| Storage slots | Dual | One |
| Pricing at release | $829 | $1,500 |