| Features |
| Exmor™ CMOS image sensor | | The A850 features a 35mm full frame Exmor™ CMOS image sensor that is approximately 2.35x larger than the APS-C sized sensors found in many DSLR cameras. The result is a larger capture area, improved wide angle performance, and tighter depth of field control.
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| SteadyShot INSIDE™ in-camera image stabilization | | The SteadyShot INSIDE™ in-camera image stabilizer actually shifts the image sensor to compensate for camera shake without sacrificing image quality.
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| Dual BIONZ™ processors | | The a harnesses the power of Dual BIONZ™ image processing engines to deliver true-to-life images with ultra-low noise and continuous shooting at up to 3 fps.
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| 3.0” Xtra Fine™ LCD | | Review your images in stunning detail on the 3.0” Xtra Fine™ LCD4 display. With photo-quality resolution of 270ppi (pixels per inch), you can identify any necessary focus or exposure corrections at the time of capture, rather than discovering them when you transfer your images to your PC.
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| Glass pentaprism viewfinder | | A large, ultra bright glass pentaprism viewfinder provides you with amazing clarity and high optical performance for tighter focus control.
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| Intelligent Preview Function | | The Intelligent Preview function allows you to see the effects of manual adjustments to exposure value, shutter speed, aperture, Dynamic Range Optimizer and White Balance before you take the shot, so you can determine the optimum settings before you take the shot, instead of losing time to trial-and-error.
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| Rugged magnesium alloy shell | | The body of the A900 is entirely covered in a die-cast magnesium alloy shell, providing a rugged feel and surprisingly lightweight.
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| PhotoTV HD viewing | | The a850 provides direct HDMI™ output to your BRAVIA® HDTV and other compatible HDTV screens, so you can view and share photos in breathtaking clarity and detail.
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| Battery Performance | | A supplied InfoLITHIUM® lithium-ion battery provides long-lasting performance, allowing you to capture approximately 880 images on a single charge.
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| 40-Segment Multi-Pattern Metering | | A 40-segment multi-pattern metering system provides superior exposure control accuracy in a wide range of lighting conditions.
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| Anti-Dust Technology | | The Sony® a; (alpha) DSLR-A900 utilizes both static-free anti-dust coating on the imager's filter and anti-dust vibration that automatically shakes the sensor to dislodge dust each time the camera is shut off.
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| Durable Shutter Design | | The shutter mechanism in the A900 is designed to achieve shutter speeds up to 1/8000 seconds and proven for 100,000 cycle operation.
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| Dual Card Slots | | The A900 features a dual card slots and accepts both CompactFlash® and Memory Stick Duo™ Media (sold separately).
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| On-Chip Column A/D Conversion | | Analog-to-digital signal conversion is performed by the full frame Exmor™ CMOS image sensor.
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| Updated Image Data Converter SR3 | | Updated Image Data Converter SR3 software improves your workflow with faster RAW file processing and improved image correction.
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| APS-C Size Capturing | | In addition to full frame image capture, the a850 can also crop images to the APS-C size format, allowing the use of lenses designed specifically for APS-C sized image sensors.
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| AF Micro Adjustment | | AF Micro Adjustment allows you to fine tune focus for various lenses. The a850 can store adjusted focus values for up to thirty lenses.
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| 2EV Exposure Bracketing | | The a850 allows you to bracket up to three exposures in 2.0EV-step increments.
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| F2.8 Sensor | | The autofocus system in the a850 features a highly accurate F2.8 sensor for improved focus precision when using lenses faster than F2.8.
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| Viewfinder magnification | | Viewfinder magnification of 0.74x lets you see your subjects nearer to actual size.
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| Mirror Lockup Mode | | Mirror Lockup Mode raises the main mirror before exposure to reduce vibration at shutter release, resulting in better performance during long exposure shots of fireworks, stars, etc.
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| Remote Camera Control | | Remote Camera Control allows you to control your a850 from your PC.
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| Optional Focusing Screens | | User-replaceable focusing screens for shooting specific subject types can be purchased as optional accessories.
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| General Specifications |
| Camera Type | | Sony a Digital 35mm SLR full-frame camera w/ pentaprism viewfinder and inter-changeable lenses
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| Color Filter System | | RGB primary color filters
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| Effective Picture Resolution | | Approx. 24.6 megapixels
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| Imaging Sensor | | 35mm Full-frame Exmor™ CMOS sensor
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| Lens Mount Type | | Sony a lens, Minolta and Konica Minolta AF lens
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| Pixel Gross | | Approx. 25.7 megapixels
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| Recording Media Type | | Memory Stick PRO Duo™ media / Compact Flash Type I, Type II (Microdrive),UDMA(Mode5) compliant
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| LCD Monitor |
| Brightness Control | | ±5 steps manual
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| Coverage | | 100% (Playback)
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| Type | | 3" TFT Xtra Fine LCD (921,600 pixels)
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| Flash |
| Flash Compensation | | ±3 EV (in 1/3EV, 1/2EV steps selectable)
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| Flash Metering System | | ADI flash (automatic change for Pre-flash TTL)
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| Modes | | Auto, Fill-flash, Rear sync, Wireless (with Flash HVL-F58AM, HVL-F42AM, HVL-F56AM, F36AM)
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| Type | | No pop-up flash. Hot shoe compatible with Sony a system flash.
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| Convenience Features |
| Self Timer | | Yes (10 seconds, 2 seconds with mirror-up function)
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| Anti-dust function | | Charge protection coating on low pass filter and image-sensor shift mechanism
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| BRAVIA® Sync | | Yes, via HDMI with compatible BRAVIA HDTV
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| Creative Style | | Standard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night, Autumn, B/W, Sepia
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| User Interface | | Easy-to-read Graphic Display and on-screen Help Guide User-friendly function menu
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| View Finder |
| Diopter Adjustment | | -1m -1
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| Eye relief | | Approx. 20 mm from the eyepiece
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| Field of View | | 98%
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| Focusing Screen | | Spherical Acute Matte Screen
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| Magnification | | 0.74x (with 50mm lens at infinity)
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| Type | | Fixed eye-level system with optical glass pentaprism
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| Power |
| Battery Capacity | | 7.2V, CIPA standard: approx. 880 pictures
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| Battery Type | | NP-FM500H Lithium-ion rechargeable battery
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| Number of Shots | | Approx. 880 shots (CIPA standard)
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| Software |
| Operating System Compatibility | | Windows 2000 Professional SP4 Windows XP* SP3 Windows Vista** SP1 Mac OS X(v10.1.3-v10.5)
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| Supplied Software | | Image Data Converter SR3.1 (Windows & Macintosh) Image Data Lightbox SR2.1 (Windows & Macintosh) Remote Camera Control 2.0 (Windows & Macintosh) PMB -P icture Motion Browser 4.2.13 (Windows only)
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| Inputs & Outputs |
| HD Output | | Yes (w/ optional HDMI cable)
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| Memory Card Slot | | Dual memory card slot: Memory Stick PRO Duo™ media Compact Flash memory card
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| Tripod Mount | | Yes, 1/4"-20
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| USB Port(s) | | Yes, Supports USB 2.0 Hi-speed
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| Control |
| AF modes | | Single-shot AF, Automatic AF, Continuous AF, (AF/MF selectable)
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| Drive Mode | | Single-shot, Cont., Self-timer, Bracket; single/cont./WB/DRO adv., Mirror Lock-up, Remote Commander
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| Exposure Compensation | | ±3.0 EV, 1/3EV,1/2EV steps selectable
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| Exposure settings | | Auto, Program Auto (A) (with Program Shift), Shutter priority (S), Aperture priority (A), Manual (M)
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| Focus Area | | Wide (Auto, up to 9 areas), Spot, Local (9 local areas selectable)
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| Focus Points | | 9 points + 10 assist focus points (local areas,selection with the multi-selector)
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| Focus Sensitivity | | 0 EV to +18 EV(at ISO100 equivalent)
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| Focus System | | TTL phase detection system
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| ISO | | Auto, selectable 100 to 6400 (in 1/3 EV steps)
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| Metering | | TTL metering w/ 40-segment honeycomb-pattern SPC
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| Metering Modes | | Multi-segment, Center-weighted, Spot, Auto Exposure Lock (AEL button)
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| Metering Sensitivity | | 0 EV to 20 EV (+2 EV to +20EV with Spot metering), (at ISO 100 equivalent with F1.4 lens)
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| White Balance | | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Custom
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