5.79 in 4.38 in  | 5.61 in 4.1 in  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Sony a99 |  Sony SLT-A77 | |
|---|---|---|
| Sensor type | CMOS | CMOS |
| Image sensor format | Full frame | APS-C |
| Sensor size | 1.41 in | 0.93 in |
| Sensor photo detectors | 25.0 Mpx | 25.0 Mpx |
| Effective pixels | 24.0 Mpx | 24.0 Mpx |
| Image ratio w:h |
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| Max resolution | 6000 x 4000 px | 6000 x 4000 px |
| Other resolutions |
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| Processor | BIONZ | BIONZ |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| ISO |
|
|
| ISO minimum | 100 | 100 |
| ISO maximum | 25600 | 25600 |
| Boosted ISO minimum | 50 | 50 |
| Boosted ISO maximum | 25600 | 25600 |
| Maximum image resolution | 6000 x 4000 px | 6000 x 4000 px |
| White balance presets | 8 | 8 |
| White balance modes |
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| Custom white balance | yes | yes |
| Supported image file formats |
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| Photo effects |
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| Image stabilizer | yes | no |
| Image stabilization type | Sensor-shift | Sensor-shift |
| Uncompressed format | RAW | RAW |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Lens mount | Sony A | Sony A |
| Digital zoom | 4.0 x | 2.0 x |
| Maximum aperture | 2.8 | 3.5 |
| Autofocus |
|
|
| Manual focus | yes | yes |
| Number of focus points | 19 | 79 |
| Filter diameter | 3.23 in | 2.44 in |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Screen size | 3.0 in | 3.0 in |
| Articulated LCD | yes | yes |
| Screen technology | LCD TFT | LCD |
| Screen dots | 1229000 | 921000 |
| Touch screen | no | no |
| Field of view | 100.0 % | 100.0 % |
| Live view | yes | yes |
| Viewfinder | Electronic | Electronic |
| Viewfinder coverage | 100.0 % | 100.0 % |
| Viewfinder resolution | 2359000.0 px | 2359000.0 px |
| Viewfinder magnification | 0.71 x | 1.09 x |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Camera shutter type | Electronic | Electronic |
| Minimum shutter speed | 30.0 s | 30.0 s |
| Maximum shutter speed | 1.0 s | 1.0 s |
| Shutter priority | yes | yes |
| Aperture priority | yes | yes |
| Manual exposure mode | yes | yes |
| Exposure compensation plus | 5 | 5 |
| Exposure compensation minus | -5 | -5 |
| Expousure compensation steps |
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| AE EV steps |
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| Self-timer delay |
|
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| AE frames |
|
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| WB Bracketing | Yes | Yes |
| Subject / scene modes | no | yes |
| Built-in flash | no | yes |
| Flash modes |
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| External flash | yes | yes |
| Continuous drive | 6.0 fps | 12.0 fps |
| Scene modes |
|
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| Self-timer | yes | yes |
| Metering modes |
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| Self-timer options |
|
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| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Maximum resolution | 1920 x 1080 px | 1920 x 1080 px |
| Video recording | yes | yes |
| Recording resolutions |
|
|
| HD type | Full HD | Full HD |
| Supported video file formats |
|
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| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Microphone type | Stereo | Stereo |
| Speaker type | Mono | Mono |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Body type | SLR | SLR |
| Colour of product | Black | Black |
| Environmentally sealed | yes | yes |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Weight | 25.86 oz | 22.82 oz |
| Width | 5.79 in | 5.61 in |
| Height | 4.38 in | 4.1 in |
| Depth | 3.09 in | 3.19 in |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Compatible memory cards |
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| Storage types |
|
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| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| Power source type | Battery | Battery |
| Battery life (CIPA) | 500 | 530 |
| Battery technology | Lithium-Ion | Lithium |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| HDMI | yes | yes |
| USB version | 2.0 | 2.0 |
| Microphone port | yes | yes |
| Remote control | yes | yes |
| Sony a99 | Sony SLT-A77 | |
|---|---|---|
| GPS | yes | yes |
| Orientation sensor | yes | yes |
| Energy Star certified | no | no |
| On Screen Display (OSD) languages |
|
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| Pros | ||
|---|---|---|
| Cons |
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