Sony Alpha 850
The α850 (DSLR-A850) was Sony's second full-frame digital SLR, introduced on 27 August 2009. Similar to the DSLR-A900, the camera featured the same 24.6-megapixel full-frame CMOS sensor used in the a900. On 8 June 2011, Sony pre-announced the camera's end of production in July/August 2011.
 | |
| Overview | |
|---|---|
| Type | Single-lens reflex |
| Lens | |
| Lens | Sony mount; compatible with Minolta A-type bayonet mount. Sony α lens and Konica Minolta α/Maxxum/Dynax lens[note 1] |
| Sensor/medium | |
| Sensor | 35.8 mm × 23.9 mm Exmor CMOS sensor |
| Maximum resolution | 24.6 megapixels |
| Storage media | Memory Stick: Memory Stick Duo, Memory Stick PRO Duo,
Memory Stick PRO-HG Duo Compact Flash Type I, Type II (Microdrive), UDMA (Mode 5) compliant |
| Focusing | |
| Focus |
|
| Focus modes | dual-cross 9 point AF w/10 assist points, center AF w/2.8 sensor |
| Focus areas | Wide (Auto, up to 9 areas), Spot, Local (9 local areas selectable) [1] |
| Exposure/metering | |
| Exposure modes | Mode: Auto, Program Auto (P, with program shift), Aperture priority (A), Shutter priority (S), Manual (M) |
| Exposure metering |
(at ISO 100 equivalent with F1.4 lens)
|
| Shutter | |
| Frame rate | 3 |
| Shutter | Electronically-controlled, vertical-traverse, focal-plane type |
| Shutter speed range | 1/8000 sec. – 30 sec., bulb, 1/250 sec. (SteadyShot off), 1/200 sec. (SteadyShot on), maximum burst of 3 frames per second. |
| Viewfinder | |
| Viewfinder | Fixed eye-level system with optical glass type pentaprism, approximately 98% |
| General | |
| LCD screen | 3.0", 921k pixels, 100% coverage |
| AV Port(s) | HDMI |
| Data Port(s) | USB 2.0 |
| Body features |
|
| Weight | 850g (bare body) |
| Made in | Japan |
The camera was almost exactly the same as the DSLR-A900, but the viewfinder coverage was dropped to 98% with 0.74× magnification and the burst rate was reduced to 3 frames per second.
Notes
- Sony's DT series lenses are not recommended for use with 35mm full-frame sensors due to their differing image circle size, which may affect light metering accuracy in certain shooting situations.
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