Sony Alpha 55
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 a 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 or 60i (depending on region)
- MPEG-4 1080 30p or 25p (depending on region)[1]
External links
Reviews
- dPreview
- Imaging Resource
- Digital Trends
References
- ^ Manual
- v
- t
- e
Level | Sensor | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||||||||||||||||||||||||||||||||||||||||||||||||
Professional | Full frame | α900 | α99 | α99 II | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
α850 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
High-end | APS-C | DG-7D | α700 | α77 | α77 II | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Midrange | α65 | α68 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Upper-entry | α55 | α57 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
α100 | α550 F | α580 | α58 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
DG-5D | α500 | α560 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
α450 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Entry-level | α33 | α35 | α37 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
α350 F | α380 | α390 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
α300 | α330 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
α200 | α230 | α290 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Early models | Minolta 7000 with SB-70/SB-70S (1986) · Minolta 9000 with SB-90/SB-90S (1986) (Still video SLRs) Minolta MS-C1100 (1992) · Minolta RD-175 (1995) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Level | Sensor | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 |
- Single-lens translucent (SLT) camera
- 5-axis in-body image stabilization (bold)
- HD video capable (Video AF)
- Dual phase-detection AF (italic)
SCREEN: Flip F, Front Flip F+, Articulating A