Sony Alpha DSLR-A380 Review, August 2009
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| Roll your mouse over the above images to see how the light path is redirected between the viewfinder and live view sensor | |
The advantage of this layout is that, unlike any other current Live View system, the camera can offer live view with the reflex mirror down. This means it behaves just like a conventional DSLR when in Live view mode, only flipping the mirror out of the way when you press the shutter button to take the photograph. The result is to give the most responsive Live View mode on any contemporary camera meaning that essentially you get the convenience of a compact camera with the speed of focus of a conventional DSLR.
All other current systems have to flip the mirror up so that the main sensor can produce the live view image. Taking a photo requires dropping the mirror again to focus or meter, then lift it again to take the actual exposure. Although this mirror flapping makes it slower, using the main imaging sensor offers other advantages. Using the main imaging sensor allows the use of the potentially more accurate and flexible contrast-detection autofocus system. Access to the main sensor also allows a very fine resolution preview for manual focus confirmation. Another disadvantage of the system is a frame coverage of only 90 percent The Sony system offers an excellent level of responsiveness but gives up the precision that macro and studio shooters are likely to need.
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If you're new to digital photography you may wish to read the Digital
Photography Glossary before diving into this article (it may help
you understand some of the terms used).
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Conclusion / Recommendation / Ratings are based on the opinion of the reviewer, you should read the ENTIRE review before coming to your own conclusions. Images which can be viewed at a larger size have a small magnifying glass icon in the bottom right corner of the image, clicking on the image will display a larger (typically VGA) image in a new window. To navigate the review simply use the next / previous page buttons, to jump to a particular section either pick the section from the drop down or select it from the navigation bar at the top. DPReview calibrate their monitors using Color Vision OptiCal at the (fairly well accepted) PC normal gamma 2.2, this means that on our monitors we can make out the difference between all of the (computer generated) grayscale blocks below. We recommend to make the most of this review you should be able to see the difference (at least) between X,Y and Z and ideally A,B and C. |
This article is Copyright 2009 Dpreview.com and the review in part or in whole may NOT be reproduced in any electronic or printed medium without prior permission from the author. For information on reproducing any part of this review (or any images) please contact: Phil Askey
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