The Sony Alpha DSLR-A900 is the flagship model in Sony’s Alpha line, using a 24.6 megapixel full-frame, mechanically stabilized Sony Exmor CMOS sensor. The camera shoots at an effective ISO 100-6400, and is capable of 5 fps image capture. A nine-point AF system with ten assist points provides improved AF response and tracking compared to step-down Alpha models. Other features include a viewfinder with 95% coverage, a 3.0 inch "Xtra Fine" LCD, and Sony’s intelligent preview function.
Features
- 24.6 MP 35mm format full-frame CMOS sensor (highest res in class)
- SteadyShot INSIDE full frame image sensor shift stabilization (world first)
- High Speed Dual Bionz processors
- Eye-level glass Penta-prism OVF, 100% coverage, 0.74x magnification
- 9 point AF with 10 assist points, center dual-cross AF w/2.8 sensor
- 5 frames per second burst, newly developed mirror box
- Intelligent Preview Function
- 3 User programmable custom memory modes on mode dial
- Advanced Dynamic Range Optimizer (5 step selectable)
- 40 segment honeycomb metering
- 3.0" 921K pixel Photo Quality (270 dpi) LCD display, 100% coverage
- Direct HDMI output
- ISO 200-3200 (ISO 100-6400 expanded range)
- User interchangeable focusing screens (3 options)
- CF Type I/II and MS slots, LI-ION battery, STAMINA 880 shots
- Weight 850g (without battery, card, accs)
- New Image Data Converter SR software (includes vignetting control)
- New Vertical Grip
- Supplied with wireless remote control
- Magnesium Alloy body and rubber seals for dust and moisture resistance
- AF micro adjustment
- $2999.99 body price; available late October 2008
Review By reviews.digitaltrends
You may think $3K for a digicam is steep but put it into perspective—the full-frame 21.1-megapixel Canon EOS-1Ds Mark III costs $7,999. What a deal! Yes, we know there are 50-megapixel sensors out there (Hasselblad has them) but that baby is a tidy $50,000 and is for studio pros only.
Review By sonyalpha.info
It is designed to deliver ultra-fine picture quality with the world’s highest resolution, 24.6-megapixel, 35 mm full-frame CMOS sensor and fast image processing with a new dual BIONZ processing engines. The camera is also the first to have a body-integrated image stabilization system for a full-frame sensor with Sony’s SteadyShot Inside anti-shake system.
Review By imaging-resource
The sensor is mounted on a moving platter that allows for in-camera image stabilization, branded as SteadyShot Inside. That’s another world’s first for a full-frame digital SLR, and it’s no mean feat when you consider that the sensor shift mechanism has to deal with the extra weight of a full-frame sensor. The various DSLRs seen to date that feature sensor shift stabilization all have significantly smaller 1.6x crop sensors. Sony rose to the challenge by designing a new more powerful sensor shift mechanism, and rates the Alpha DSLR-A900 as good for a 2.5 to 4-stop improvement.
Review By dpreview
The success of the Alpha 900 amongst the Minolta, Konica Minolta and Sony faithful seems assured; at a launch price of just shy of $3000 it offers a lot of ‘bang for your buck’ and there is undoubtedly a significant number of Minolta film SLR users who’ve been waiting years for a full frame digital body on which to use their existing lenses. The challenge for Sony, however, is to generate some interest from people without an existing investment in the Minolta (or subsequent Alpha) system. And on paper the Alpha 900 looks promising – and we’re already impressed with the build, handling and viewfinder; we’ll find out more about how well it actually performs when we finish our full review. For now enjoy this in-depth preview of the latest addition to the small but growing, exclusive full frame DSLR club.
Review By dcresource
The button with the "C" on it is a customizable button in record mode (it shows a histogram in playback mode). By default, it opens the Creative Style menu. There are six Styles available (standard, vivid, neutral, portrait, landscape, black and white), and each can be customized in a number of ways. First, you can change the image style itself, with the additional choices being clear, deep, light, sunset, night view, autumn leaves, and sepia. You can also tweak the contrast, saturation, sharpness, brightness, and zone (under/overexposure protection).
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