The α900 (DSLR-A900) is a full-framedigital SLR camera, produced by Sony. An early design study of the camera was shown at PMA on 8 March 2007, and a newer prototype announced at PMA 2008 on 31 January 2008. Sony officially introduced the final camera on 9 September 2008 prior to photokina 2008. In October 2011, Sony Japan announced the camera's end of production.
The specifications include: 24.6-megapixel CMOS sensor, 5 frame/s burst mode, dual BIONZ processors, 100% viewfinder, 9-point AF with 10 assist points, inbuilt image sensor shift stabilization and intelligent preview. It does not have video/movie recording.
This mode, first introduced on the DSLR-A900, allows the photographer to take a sample image at the current settings. When this mode is enabled in the settings (default), then using the depth of field (DOF) preview button makes a preview image of the subject. The display shows the image and its image histogram, but it is not stored on the memory card. At that point, the photographer can accept current settings or simulate how the image (and histogram) would look with changes in aperture, shutter speed, dynamic range optimizer and white balance. If the photographer prefers those new settings he simply continues to work to accept them. Otherwise he can reject them by depressing the garbage can icon. He can also compare the sample to the simulation by depressing the DISP button.
Predecessor to the DSLR-A850edit
The DSLR-A900 requires a labour-intensive alignment procedure in the factory in order to provide a 100% scene view in the viewfinder. In eliminating this costly procedure by masking the view to a slightly smaller area (98%) while also downspecifying the frame rate to 3 frames per second, the DSLR-A850 offers a camera with most of the benefits of the DSLR-A900 at a significant saving to the photographer.
External linksedit
Wikimedia Commons has media related to Sony DSLR-A900 and Taken with Sony DSLR-A900.
Reviewsedit
Sony A900 Preview Production model reviewed by Alphamountworld
Sony Develops 35 mm full size CMOS Image Sensor with 24.81 Effective Megapixels
Sony A900 ad reveals 24.6MP sensor
November 30, 2023
sony, alpha, α900, dslr, a900, full, frame, digital, camera, produced, sony, early, design, study, camera, shown, march, 2007, newer, prototype, announced, 2008, january, 2008, sony, officially, introduced, final, camera, september, 2008, prior, photokina, 200. The a900 DSLR A900 is a full frame digital SLR camera produced by Sony An early design study of the camera was shown at PMA on 8 March 2007 and a newer prototype announced at PMA 2008 on 31 January 2008 Sony officially introduced the final camera on 9 September 2008 prior to photokina 2008 In October 2011 Sony Japan announced the camera s end of production Sony a 900OverviewTypeSingle lens reflexLensLensSony mount compatible with Minolta A type bayonet mount Sensor mediumSensor35 9 mm 24 0 mm Exmor CMOS sensorMaximum resolution24 6 megapixelsFilm speedISO 100 6400Storage mediaMemory Stick Memory Stick Duo Memory Stick PRO Duo Memory Stick PRO HG Duo Compact Flash Type I Type II Microdrive UDMA Mode5 compliantFocusingFocus modesWide AF area Spot AF area center Focus area selection any of 9 Focus areasTTL CCD line sensors 9 points center dual cross types 10 assist sensors Exposure meteringExposure modesMode Auto Program Auto P with program shift Aperture priority A Shutter priority S Manual M Exposure meteringTTL metering Cell 40 segment honeycomb pattern SPC Range 0 EV to 20 EV 2 EV to 20 EV with Spot metering at ISO 100 equivalent with F1 4 lens Metering modesMulti segment Spot Centre weightedShutterShutterElectronically controlled vertical traverse focal plane typeShutter speed range1 8000 sec 30 sec bulbContinuous shooting5fpsViewfinderViewfinderFixed eye level system with optical glass type pentaprism approximately 100 0 74x MagnificationGeneralLCD screen3 0 921 600 dotsBatteryNP FM500H Lithium Ion rechargeable battery 1650 mAh Optional battery packsVertical Grip VG C90AMWeight850 g 30 oz Made inJapanThe specifications include 24 6 megapixel CMOS sensor 5 frame s burst mode dual BIONZ processors 100 viewfinder 9 point AF with 10 assist points inbuilt image sensor shift stabilization and intelligent preview It does not have video movie recording Contents 1 Intelligent preview mode 2 Predecessor to the DSLR A850 3 External links 3 1 Reviews 3 2 NewsIntelligent preview mode editThis mode first introduced on the DSLR A900 allows the photographer to take a sample image at the current settings When this mode is enabled in the settings default then using the depth of field DOF preview button makes a preview image of the subject The display shows the image and its image histogram but it is not stored on the memory card At that point the photographer can accept current settings or simulate how the image and histogram would look with changes in aperture shutter speed dynamic range optimizer and white balance If the photographer prefers those new settings he simply continues to work to accept them Otherwise he can reject them by depressing the garbage can icon He can also compare the sample to the simulation by depressing the DISP button Predecessor to the DSLR A850 editThe DSLR A900 requires a labour intensive alignment procedure in the factory in order to provide a 100 scene view in the viewfinder In eliminating this costly procedure by masking the view to a slightly smaller area 98 while also downspecifying the frame rate to 3 frames per second the DSLR A850 offers a camera with most of the benefits of the DSLR A900 at a significant saving to the photographer External links edit nbsp Wikimedia Commons has media related to wbr Sony DSLR A900 and wbr Taken with Sony DSLR A900 Reviews edit Sony A900 Preview Production model reviewed by Alphamountworld 1 by Imaging Resource com Review by Digital Photography Review Review by South China Morning Post Full length review by DigitalCameraInfo comNews edit Sony A900 and Zeiss Lens Updates Sony Develops 35 mm full size CMOS Image Sensor with 24 81 Effective Megapixels Sony A900 ad reveals 24 6MP sensor Retrieved from https en wikipedia org w index php title Sony Alpha 900 amp oldid 1110442852, wikipedia, wiki, book, books, library,