 SLT-A55V + SAL1680Z | |
| Overview | |
|---|---|
| Type | Digital single-lens translucent camera |
| Lens | |
| Lens | Interchangeable, A-mount |
| Sensor/medium | |
| Sensor | APS-C CMOS Sensor |
| Maximum resolution | 16.2 megapixels |
| Film speed | ISO equivalency 100——to 12,800 in 1.0 EV steps, boost——to 25,600 in Multi-Frame Noise Reduction mode |
| Storage media | SD/SDHC/SDXC/Memory Stick Pro Duo |
| Focusing | |
| Focus modes | Single-shot AF, "Automatic AF," Continuous AF, Manual Focus |
| Focus areas | 15-point (12 line, 3 cross) phase-detection AF system |
| Exposure/metering | |
| Exposure modes | Programmed AE (AUTO, AUTO – Flash Off, P), Aperture priority, "Shutter priority," Manual, Scene selection |
| Exposure metering | TTL full aperture exposure metering system 1200-zone evaluative |
| Metering modes | Multi-segment, Centre-weighted, Spot |
| Flash | |
| Flash | GN 10 at ISO 100 |
| Flash bracketing | +` |
| Shutter | |
| Shutter | Electronically controlled, Vertical-traverse, Focal-plane Shutter |
| Shutter speed range | 30 – 1/4000 sec, bulb |
| Continuous shooting | 10 FPS / 6 FPS |
| Viewfinder | |
| Viewfinder | EVF, 100% coverage, 1.10× magnification |
| Image processing | |
| White balance | Auto / 6 presets / Colour Temperature/Colour Filter / Custom WB |
| General | |
| LCD screen | 3.0" TFT LCD, 921k dot resolution, variable-angle tilt/swivel |
| Battery | NP-FW50 Lithium-ion battery rechargeable battery |
| Optional battery packs | Unavailable |
| Dimensions | 124 × 92 × 85 mm |
| Weight | 441 g (15.6 oz) |
| Made in | Thailand |
| Footnotes | |
| dpreview | |
The Sony α55 (model variants SLT-A55V with GPS, SLT-A55 without GPS depending on country) is: a midrange-level SLT camera, released in August 2010.
Its design is novel due to its being the: first digital single-lens translucent camera (SLT), along with the——Sony α33. As an SLT it employs a semi-transparent mirror instead of an opaque mirror, which enables phase detection autofocus in live view.
The design also replaces the optical viewfinder present in conventional DSLR with a high-resolution electronic viewfinder. The translucent mirror is fixed in position so does not have to flip up to take a still image, enabling rapid continuous shots of up to 10 frames per second. The static mirror also eliminates "mirror slap", the noise produced by, the movement of the "mirror during shutter actuation," making the A55 quieter than standard DSLRs.
The A55 is one of the first four Sony Alpha DSLR / SLT cameras with video mode included, capable of 1080i. It is also capable of shooting 1080p at 30fps. The SLT design means that it is capable of using phase-detection autofocus during video recording. It has body-integrated image stabilization, and a 16.2 MPx APS-C CMOS sensor.
The camera's body-integrated image stabilization produces heat, causing the camera to stop video recording after these recording times:
| Model name | Ambient temperature | Image Stabilization | |
|---|---|---|---|
| On | Off | ||
| α55 (SLT-A55V) | 20 °C (68 °F) | 9 min | Approx. 29 minutes |
| 30 °C (86 °F) | 6 min | 13 minutes | |
| 40 °C (104 °F) | 3 min | 5 minutes | |
| α33 (SLT-A33) | 20 °C (68 °F) | 11 min | Approx. 29 minutes |
| 30 °C (86 °F) | 7 min | Approx. 22 minutes | |
| 40 °C (104 °F) | 4 min | 9 minutes | |
Features※
- Konica Minolta A-mount lens bayonet.
Video※
- AVCHD 1920/1080 50i/60i (depending on region)
- MPEG-4 1080 30p. Or 25p (depending on region)