What is the crop factor of the Pentax K-30?
The Pentax K-30 is equipped with an APS-C sensor, whose diagonal measures 28.4mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 1.5.
The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.
Sensor size comparison with a film slide
With a crop factor of 1.5, the sensor in the Pentax K-30 is smaller than the receptor area of a 35mm film slide or negative. As a result, a lens that is attached to the Pentax K-30 will offer a narrower angle of view and provide deeper depth of field than a lens of similar focal length and aperture on a film camera. The equivalent focal length is obtained by multiplying the actual focal length of the lens with the crop factor. For example, a 33mm lens on the Pentax K-30 will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (33mm * 1.5 = 50mm).
Sensor specs and performance
The table below compares the sensor specs of the Pentax K-30 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax K-30 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.7 | 13.0 | 1129 | 79 | |
2. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
3. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
4. | Pentax K-5 | APS-C | 16.1 | 4928 | 3264 | 1080/25p | 23.7 | 14.1 | 1162 | 82 | |
5. | Pentax K-5 II | APS-C | 16.1 | 4928 | 3264 | 1080/25p | 23.8 | 14.1 | 1235 | 82 | |
6. | Pentax K-50 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.7 | 13.0 | 1120 | 79 | |
7. | Pentax K-500 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.7 | 13.1 | 1087 | 79 | |
8. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
9. | Pentax K-S1 | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 23.5 | 13.0 | 1061 | 78 | |
10. | Pentax K-S2 | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 23.6 | 12.9 | 1514 | 79 | |
11. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
In the United States, the K-30 was initially launched in May 2012 at a price of $849.
Camera to camera comparisons
In case you are interested in seeing how this camera compares to another one, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Camera Model | Pentax K-30 | |
---|---|---|
Camera Type | Digital single lens reflex | |
Camera Lens | Pentax K mount lenses | |
Launch Date | May 2012 | |
Launch Price | USD 849 | |
Sensor Specs | ||
Sensor Technology | CMOS | |
Sensor Format | APS-C Sensor | |
Sensor Size | 23.7 x 15.6 mm | |
Sensor Area | 370 mm2 | |
Sensor Diagonal | 28.4 mm | |
Crop Factor | 1.5x | |
Sensor Resolution | 16.1 Megapixels | |
Image Resolution | 4 928 x 3 264 pixels | |
Pixel Pitch | 4.79 μm | |
Pixel Density | 4.35 MP/cm2 | |
Moiré control | Anti-Alias filter | |
Movie Capability | 1080/30p Video | |
ISO Setting | 100 - 12 800 ISO | |
ISO Boost | 100 - 25 600 ISO | |
Image Processor | PRIME M | |
DXO Sensor Quality (score) | 79 | |
DXO Color Depth (bits) | 23.7 | |
DXO Dynamic Range (EV) | 13.0 | |
DXO Low Light (ISO) | 1129 | |
Screen Specs | ||
Viewfinder Type | Optical viewfinder | |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.61x | |
Top-Level Screen | no Top Display | |
LCD Framing | Live View | |
LCD Size | 3.0 inch | |
LCD Resolution | 921k dots | |
LCD Attachment | Fixed screen | |
Touch Input | No touchscreen | |
Shooting Specs | ||
Focus System | Phase-detect AF | |
Manual Focusing Aid | Focus Peaking | |
Maximum Shutter Speed | 1/6000s | |
Continuous Shooting | 6 shutter flaps/s | |
Shutter Life Expectancy | 100 000 actuations | |
Silent Shooting | no E-Shutter | |
Time Lapse Photography | no Intervalometer | |
Image Stabilization | In-body stabilization | |
Fill Flash | Built-in Flash | |
Storage Medium | SDXC cards | |
Single or Dual Card Slots | Single card slot | |
UHS card support | no | |
Connectivity Specs | ||
External Flash | Hotshoe | |
USB Connector | USB 2.0 | |
HDMI Port | no HDMI | |
Wifi Support | no Wifi | |
Body Specs | ||
Environmental Sealing | Weathersealed body | |
Battery Type | Pentax D-LI109 power pack | |
Battery Life (CIPA) | 410 shots per charge | |
Body Dimensions |
130 x 97 x 71 mm (5.1 x 3.8 x 2.8 in) |
|
Camera Weight | 650 g (22.9 oz) |
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