Sony DSLR-A850 full-frame digital SLR

Posted: August 30, 2009 in All about Camera

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Sony unveiled its second full-frame digital SLR in the shape of DSLR-A850. It offers almost all features of the company’s flagship full frame DSLR A900, but at a more affordable price. It is built around the same 24.6MP CMOS sensor and incorporates A900’s 3.0 inch 921k LCD, sensor-shift image-stabilization and Dual Bionz processors. The only compromise is a 98% viewfinder coverage against A900’s 100% and slower continuous shooting. To complement the A850, Sony has also announced a mid-priced 28-75mm constant F2.8 SAM lens to fit with the A850’s affordable full-frame ethos. The A850 will start shipping from September 2009 with the 28-75mm lens available from November 2009.

Features
Full-frame 24.6 effective megapixel Exmor™ CMOS sensor and dual BIONZ processors for detail-packed, low-noise images with high sensitivity up to ISO 6400 (with expanded ISO range)
Bright optical glass pentaprism viewfinder with 98% coverage
SteadyShot INSIDE™ offers up to 4.0 steps anti-shake performance with all lenses
Photo quality (921k dot) 3.0-inch Xtra Fine LCD
Fast, high-accuracy 9-point AF with 10 focus assist points
2 Price (body only)
• US: $ 2000
• UK: TBC
• EU: € 1999
Price (with 28-75mm SAM lens) • US: ~$ 2800
• UK: TBC
• EU: € 2688
Body material –Magnesium Body

Sensor

• 35.9 x 24.0 mm CMOS sensor ‘Exmor’
• RGB Color Filter Array
• Built-in fixed low-pass filter
• 25.7 million total pixels
• 24.6 million effective pixels
• On-chip Column A/D Conversion & NR

Image sizes [Still]

• 6048 x 4032 (24M 3:2)
• 4400 x 2936 (13M 3:2)
• 3024 x 2016 (6.1M 3:2)
• 6048 x 3408 (21M 16:9)
• 4400 x 2472 (11M 16:9)
• 3024 x 1704 (5.2M 16:9)
• 3924 x 2656 (11M APSC)
• 2896 x 1928 (5.6M APSC)
• 1984 x 1320 (2.6M APSC)

File qualities / formats

• RAW (.ARW 2.0)
• Compressed or uncompressed RAW option
• RAW + JPEG Fine
• JPEG Extra Fine
• JPEG Fine
• JPEG Standard

Dust reduction

• Charge protection coating on low-pass filter

• CCD-shift dust reduction mechanism
Lenses • Sony Alpha lenses
(also compatible with Minolta A-type bayonet mount lenses)
• Can be used with DT (1.5x crop) lenses in APS-C mode
FOV crop 1.0 x

Image Stabilization

• CCD-Shift ‘ SteadyShot INSIDE’ system
• Five level LED shake indicator in viewfinder
• Claimed equivalent to 2.5 EV- 4 EV steps in shutter speed

Auto Focus

• TTL CCD line sensors (9-points, center dual cross types + 10 assist sensors)
• EV 0 to 18 (ISO 100) detection range
• Predictive focus control for moving subjects

AF area selection

• Wide AF area
• Spot AF area (center)
• Focus area selection (any of 9)

Focus modes

• Single-shot AF
• Direct Manual Focus
• Continuous AF
• Automatic AF
• Manual focus
• AF micro adjustment (+/- 20 steps for up to 30 lenses)
AF assist

illuminator

• Yes (built-in LED lamp)
• Range approx 1m – 7m

Eye-start AF No

Shooting modes

• Auto
• Programmed Auto (with shift)
• Aperture priority AE
• Shutter priority AE
• Manual
• MR (memory recall) / Custom

Sensitivity

• Auto (200 – 1600) – upper/lower limit selectable *
• ISO 200
• ISO 400
• ISO 800
• ISO 1600
• ISO 3200
• ISO 100,ISO 125,ISO 160, ISO 4000, ISO 5000, ISO 6400 (expanded range)

Metering modes

• Multi-segment (40 segment Honeycomb pattern)
• Center-weighted
• Spot

Metering range

• TTL metering
• 40-segment honeycomb-pattern SPC
• EV 0 to 20 (Multi-segment / Center-weighted)
• EV 2 to 20 (Spot metering)
(at ISO 100 with F1.4 lens)

AE Lock

• AEL button (customizable)
• Half-press shutter release

AE Bracketing

• Single or continuous bracketing
• 3 or 5 frames
• 0.3, 0.5, 0.7 or 2.0 EV steps*
*2.0 EV steps for 3 frames only

Exposure compen.

• -3.0 to +3.0 EV
• 0.3 or 0.5 EV steps
Shutter Electronically-controlled, vertical-traverse, focal-plane Shutter

Shutter Speed

30 to 1/8000 sec
• Bulb

Flash X-sync

• 1/250 sec
• 1/200 sec (with SteadyShot INSIDE on)

Aperture values Depends on lens, 0.3 EV steps
DOF preview Yes, dedicated button
White balance

• Auto
• Daylight
• Shade
• Cloudy
• Tungsten
• Fluorescent
• Flash
• Color temperature (2500 – 9900 K)
• Manual (Custom) – 3 memories

White balance fine tuning

• Auto (none)
• Preset WB: -3 to +3
• Fluorescent WB: -2 to +4
• Color temperature WB: G9 to M9 (19 step Magenta / Green compensation)

White balance bracketing

• 3 frames
• Hi or Lo steps

Dynamic range optimizer

• Off
• Standard
• Advanced Auto
• Advanced
• DRO advanced bracketing (3 frames, High/Low selectable)

Color space

• sRGB
• Adobe RGB

Color modes

• Standard
• Vivid
• Neutral
• Clear
• Deep
• Light
• Portrait
• Landscape
• Sunset
• Night view
• Autumn Leaves
• B&W
• Sepia

Image parameters

• Contrast (-3 to +3)
• Saturation (-3 to +3)
• Sharpness (-3 to +3)
• Zone Matching (-1 to +2 steps)
• Brightness (-3 to +3 steps)
(Available in all color modes)

Noise reduction

• Long exposure for exposures longer than 1 second (User controllable: On / Off)
• High ISO NR High/Normal/Low/Off at ISO 1600 or higher
Viewfinder
• Eye-level fixed optical glass pentaprism
• Spherical Acute Matte focusing screen (interchangeable)
• Magnification approx. 0.74x
• 98% frame coverage*
• Dioptric adjustment (-3 to +1.0)
• Eye-relief 20 mm from eyepiece
• Eyepiece cup removable
• Eyepiece shutter built-in
• Viewfinder info bar

LCD monitor

• 3.0″ ‘Xtra Fine’ TFT LCD
• 921,600 pixels (640 x 480 x 3 (RGB))
• 100% coverage
• Brightness setting -/+
• Anti-reflective coating

Flash compensation -3.0 to +3.0 EV in 0.3, 0.5, 0.7, 2.0 EV steps
Flash Mode Auto, Fill-Flash, Rear sync , High Speed Sync
External flash (optional) • Sony HVL-F58M

• Sony HVL-F56M
• Sony HVL-F42M
• Sony HVL-F36M
• Macro Twin Flash Kit HVL-MT24AM
• Ring Light HVL-RLAM
• Off camera flash shoe FA-CS1 AM

Drive modes

• Single-frame
• Continuous (H/L selectable)
• Self-timer (10 or 2 sec)
• Mirror-Up
• Continuous bracket
• Single-frame bracket
• White balance bracket
• DRO bracket
• Mirror Lock-Up
• Remote Commander

Continuous-shooting

* Approx 3 fps max
• RAW: Up to 16 frames
• cRAW (compressed): Up to 18 frames
• RAW+JPEG: Up to12 frames
• cRAW+JPEG : Up to 12 frames
• JPEG (XFINE): Up to 34 frames
• JPEG (STD/FINE): 593/384

Self-timer

• 10 sec
• 2 sec
• Mirror up function (optional)
• Remote control

Orientation sensor Yes, for shooting, playback and control panel display
Connectivity

• USB 2.0 Hi-Speed (mass storage, Multi-LUN or PTP)
• Video out (NTSC or PAL)
• HDMI type C mini jack
• DC-IN
• Remote terminal
• PC control (with supplied software)

Remote control

* • Wired: with optional RM-S1AM or RM-L1AM
• Wireless: with optional RM-DSLR1)

Video out

• AV (Selectable NTSC or PAL)
• HDMI (1920 x 1080i, 1280 x 720p, 720 x 580p, 720 x 576p)
• ‘PhotoTV’ HD settings applied with BRAVIA.

Storage

Compact Flash Type I/II, UDMA Mode 5 compliant
• Memory Stick Duo / Pro Duo, PRO-HG Duo
• Supports FAT12 / FAT16 / FAT32

Power

• NP-FM500H Lithium-Ion rechargeable battery (1650 mAh)
• CR2025 Wireless remote
• Battery charger included
• Optional AC adapter
• Battery life Approx 880 shots (CIPA standard)

Vertical grip

• Vertical Grip VG-C90AM
• One or Two NP-FM500H batteries with auto switchover for power (additional battery is optional).
Dimensions 156 x 117 x 82 mm
Weight (body) 850 g

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Comments
  1. Susan says:

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    Susan

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