Sony Alpha A580 review
Performance
Sony A580 Review - Performance
Undoubtedly the most significant feature when comparing the A580 to another beginner DSLR is the 7fps burst rate. When testing the system in the highest JPEG quality the rate only started to falter around the 20 shot mark and yet still happily filled up a card hereafter. The Raw + JPEG mode was very similar, happily firing off the same 20 shots before a more severe drop off in pace. Although the buffer filled the camera was ready for use again fairly swiftly, and images could also be reviewed without a huge delay. The mirror slap was fairly audible throughout use of the burst mode, bringing about slight concerns over whether it would attribute to camera motion or hand shake, although there were few serious indications of this during testing.
The A580's movie mode is, in fact, an interlaced rather than progressive capture. This means that the end product has frames comprised of two combined sets of horizontal lines, alternating at a rate of 50 frames per second. This is often considered a step down in quality compared to progressive scan due to possible 'tearing' in fast motion.

Although the A580 operates on a fundamentally different system to the A55, its phase-detection AF system is of a similar ilk for single focus purposes. The camera is able to adjust focus depth reasonably quickly, and thus reduce the amount of time the camera spends hunting for a subject. Although the system is rapid enough in differing light levels those lacking in more obvious contrast proved an issue at times. It was fortunate that the 75-300mm lens used in a number of the tests featured a focus limiting switch, or a number of images would have been entirely out of focus due to the camera failing to locate a focal point.
The A580 differs from a number of DSLRs in a similar price range by having a physical switch to change between the optical viewfinder and Quick AF Live View mode. Although there is a Focus Check Live View, which can be activated via button press, it's not as fully-featured as the full live view mode. A shutter also obstructs the viewfinder, making it far more useful for long exposures than the Focus Check mode, which simply raises the mirror. The LCD screen itself offers an impressive level of detail, being useful in both direct sunlight and at low and high angles thanks to the vari-angle screen. Although there's only vertical alterations possible the feature is still quite useful. The live view mode itself is streets ahead of competitors thanks to the additional sensor that Sony's 'Quick AF Live View' mode offers. It means focusing speeds of a similar speed to when looking through the viewfinder, something that competitor models really can't match up to.
The A580's Full HD 1080i50 movie mode doesn't allow for continuous autofocus while shooting, instead switching by to the AF-S mode regardless of the prior settings. Only the Exposure Compensation can be altered from the available manual settings, alongside the likes of white balance and D-Range are also available. This does mean all of the major alterations are in the hands of the camera's processing engine and automatic exposure control, so switching between lighting conditions leads to a visible graduation in exposure during recording.
As with the Sony compacts a Sweep Panorama mode is available, working in an extremely similar manner by requiring a singular motion to create a stitched image. A 3D mode is also available, saved as an MPO file that can be output to 3DTVs and similar devices, rather than viewed back on the camera itself. When shooting a panorama it's worth bearing in mind any major changes in exposure, as the camera is essentially locked into a fixed setting until the panorama ends.
The A580's battery life readout was accurate thanks to a percentage display and we shot some 1050 shots before it was fully depleted.
All in all the A580 can be a bit of a mixed bag. When shooting at a set distance the burst rate fared well enough, but the autofocus system wasn't always quite up to pace - it can't match the fast-moving action that a pro-spec camera can, for example. On a number of occasions the focal distance traveled throughout the full available range, hunting for a subject before finally settling - again, not ideal for fast-moving action.




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Latest comments
May 02 10:24
bigdaveg40
In light of the score for this camera and the 89% that the Nikon D5100 received, it would seem that everyone except wdc themselves are aware of the blatant biase towards anything Nikon or Canon, dxo mark is widely regarding and highly acclaimed within the photographic industry, more importantly they are totally unbiased, i found this interesting web site; http://www.dxomark.com/index.php/Our-publications/DxOMark-reviews/DxOMark-review-for-APS-C-camera-2010-who-takes-the-lead Which basically pits the A580 with the likes of the D7000 & Canon 60D etc, both of which are considerably (hundreds), more expensive that the A580, which WDC puts lower than the D5100. The A55 did get a great wdc score (isn't the A580 the more traditional version ?), the A55 is also mentioned and according to dxo stills are better from the A580, like live view & face detection video capability IMHO are "novelty" features, how many pro's use these features for example ?, they are handy to have, but then so is a spare tyre. What matters most is for a CAMERA to deliver the goods; still's IQ. The Canon 60d also got 91% from WDC but that camera gets a right kicking by DXO, ask Canon fans themselves which is better the 60d or the much older 40d, or even the same of the 600d & 550d and the responses would be telling. Other people's comments etc would also seem to be making the same request; conduct all reviews fairly and with no biase, and if not prove to us the reader why the D5100 gets 2% more than the likes of a Sony A580, pentax or oly.
May 23 11:44
Alex
Anyone?
November 25 07:36
Nana Miss
Aloha mate! I quite agree with your opinion.
January 29 22:24
Naveed
No Sir, this camera with its brilliant Live View technology and Sensor based IS (great for primes) is superior to APSC from Canikons and Sony own A55 (T mirror is deseased) for still photographers.