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Sony α55 and α33 - World's First DSLRs with Translucent Mirror
On September 10, Sony will release the Alpha 55 and Alpha 33, the world's first digital SLRs with a transparent mirror.
Instead of the mirror box used in conventional SLRs, these cameras use a unique mirror box with a transparent mirror. This enables them to achieve super-fast continuous shooting, at 10 frames per second, and continuous focusing, which were previously only possible with bulky, expensive SLRs for professional use. These cameras are also the world's first to feature TTL phase-difference detection in video mode.
"By using a transparent mirror, we've enabled the light coming in through the lens to continually reach the autofocus sensor and the image sensor simultaneously. As a result, the autofocus operates continuously."
The Alpha 55 features the newly developed Exmor APS HD CMOS sensor with effective resolution of 16.2 megapixels, while the Alpha 33 has the 14.2 megapixel sensor. The CMOS sensor in the Alpha 55 achieves faster read-out, and due to advances in image processing, it has 20% higher sensitivity and noise levels have been reduced by 30%.
These are the first cameras in the Alpha series to feature the Tru-Finder, a newly developed electronic viewfinder. The 3 inch 920,000 dot high resolution Xtra Fine LCD enables smooth display at 60 frames per second. The display uses vari-angle tilt, through 180 degrees in the vertical direction and 270 degrees in the horizontal, allowing the camera to be used from a wide range of angles.
The translucent mirror is also used in video shooting, to capture continuously focused video in AVCHD Full High Definition format. and the autofocus feature can be used with all lenses except full manual ones.
Recommended retail prices for these SLR bodies are 90,000 yen for the Alpha 55 and 75,000 yen for the Alpha 33.
Related Links :
- Press Release
Instead of the mirror box used in conventional SLRs, these cameras use a unique mirror box with a transparent mirror. This enables them to achieve super-fast continuous shooting, at 10 frames per second, and continuous focusing, which were previously only possible with bulky, expensive SLRs for professional use. These cameras are also the world's first to feature TTL phase-difference detection in video mode.
"By using a transparent mirror, we've enabled the light coming in through the lens to continually reach the autofocus sensor and the image sensor simultaneously. As a result, the autofocus operates continuously."
The Alpha 55 features the newly developed Exmor APS HD CMOS sensor with effective resolution of 16.2 megapixels, while the Alpha 33 has the 14.2 megapixel sensor. The CMOS sensor in the Alpha 55 achieves faster read-out, and due to advances in image processing, it has 20% higher sensitivity and noise levels have been reduced by 30%.
These are the first cameras in the Alpha series to feature the Tru-Finder, a newly developed electronic viewfinder. The 3 inch 920,000 dot high resolution Xtra Fine LCD enables smooth display at 60 frames per second. The display uses vari-angle tilt, through 180 degrees in the vertical direction and 270 degrees in the horizontal, allowing the camera to be used from a wide range of angles.
The translucent mirror is also used in video shooting, to capture continuously focused video in AVCHD Full High Definition format. and the autofocus feature can be used with all lenses except full manual ones.
Recommended retail prices for these SLR bodies are 90,000 yen for the Alpha 55 and 75,000 yen for the Alpha 33.
Related Links :
- Press Release
