What is the crop factor of the Sony A99?
The Sony Alpha SLT-A99 is equipped with a full frame sensor, whose diagonal measures 43mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 1.0.
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 1.0, the sensor in the Sony A99 has a similar size as a 35mm film slide or negative. As a result, a lens that is attached to the Sony A99 will offer the same angle of view and provide the same depth of field as a lens of the same focal length and aperture on a film camera.
Sensor specs and performance
The table below compares the sensor specs of the Sony A99 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. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
| 2. | Canon R6 | Full Frame | 20.0 | 5472 | 3648 | 4k/60p | 24.2 | 14.3 | 3394 | 90 | |
| 3. | Panasonic GH5 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.9 | 13.0 | 807 | 77 | |
| 4. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
| 5. | Sony A9 II | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.0 | 3434 | 93 | |
| 6. | Sony A9 | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 24.9 | 13.3 | 3517 | 92 | |
| 7. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 | |
| 8. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
| 9. | Sony A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
| 10. | Sony A850 | Full Frame | 24.4 | 6048 | 4032 | none | 23.8 | 12.2 | 1415 | 79 | |
| 11. | Sony A900 | Full Frame | 24.4 | 6048 | 4032 | none | 23.7 | 12.3 | 1431 | 79 |
In the United States, the A99 was initially launched in September 2012 at a price of $2,799.
Check A99 offers at
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Camera to camera comparisons
In case you are interested in seeing how this camera compares to another one, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
| Camera Model | Sony A99 | |
|---|---|---|
| Camera Type | Digital single lens reflex | |
| Camera Lens | Sony A mount lenses | |
| Launch Date | September 2012 | |
| Launch Price | USD 2 799 | |
| Sensor Specs | ||
| Sensor Technology | CMOS | |
| Sensor Format | Full Frame Sensor | |
| Sensor Size | 35.8 x 23.8 mm | |
| Sensor Area | 852 mm2 | |
| Sensor Diagonal | 43 mm | |
| Crop Factor | 1.0x | |
| Sensor Resolution | 24 Megapixels | |
| Image Resolution | 6 000 x 4 000 pixels | |
| Pixel Pitch | 5.96 μm | |
| Pixel Density | 2.82 MP/cm2 | |
| Moiré control | Anti-Alias filter | |
| Movie Capability | 1080/60p Video | |
| ISO Setting | 100 - 25 600 ISO | |
| ISO Boost | 50 - 25 600 ISO | |
| Image Processor | BIONZ X | |
| DXO Sensor Quality (score) | 89 | |
| DXO Color Depth (bits) | 25.0 | |
| DXO Dynamic Range (EV) | 14.0 | |
| DXO Low Light (ISO) | 1555 | |
| Screen Specs | ||
| Viewfinder Type | Electronic viewfinder | |
| Viewfinder Field of View | 100% | |
| Viewfinder Magnification | 0.71x | |
| Viewfinder Resolution | 2359k dots | |
| Top-Level Screen | Control Panel | |
| LCD Framing | Live View | |
| LCD Size | 3.0 inch | |
| LCD Resolution | 1229k dots | |
| LCD Attachment | Fully flexible screen | |
| V-logging Friendliness | Front-flip possible | |
| Touch Input | No touchscreen | |
| Shooting Specs | ||
| Focus System | Phase-detect AF | |
| Manual Focusing Aid | Focus Peaking | |
| Maximum Shutter Speed | 1/8000s | |
| Continuous Shooting | 6 shutter flaps/s | |
| Shutter Life Expectancy | 200 000 actuations | |
| Silent Shooting | no E-Shutter | |
| Time Lapse Photography | no Intervalometer | |
| Image Stabilization | In-body stabilization | |
| Fill Flash | no On-Board Flash | |
| Storage Medium | MS or SDXC cards | |
| Single or Dual Card Slots | Dual card slots | |
| UHS card support | UHS-I | |
| Connectivity Specs | ||
| External Flash | Hotshoe | |
| Studio Flash | PC Sync socket | |
| USB Connector | USB 2.0 | |
| HDMI Port | mini HDMI | |
| Microphone Port | External MIC port | |
| Headphone Socket | Headphone port | |
| Wifi Support | no Wifi | |
| Geotagging | GPS built-in | |
| Body Specs | ||
| Environmental Sealing | Weathersealed body | |
| Battery Type | Sony NP-FM500H power pack | |
| Battery Life (CIPA) | 500 shots per charge | |
| Body Dimensions |
147 x 111 x 78 mm (5.8 x 4.4 x 3.1 in) |
|
| Camera Weight | 812 g (28.6 oz) | |
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