A99 vs A900 resolution

Started Jan 19, 2013 | Discussions thread
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Cartagena Photo
Regular MemberPosts: 317Gear list
Re: A99 vs A900 resolution
In reply to Waardij, Jan 27, 2013

How many of the people reacting here have any personal experience with either camera? Like mentioned before, I have both, and the dynamic range is incomparable. Apart form the numbers DxO published (which are probably the most accurate), the noise of the a99 is different. the a900, when you use the dynamic range, meaning you lift the shadows, becomes ugly in that the color noise is of low spatial frequency, almost impossible to get rid of. more blotchy noise. The a99 noise is much finer and the color component of it is very easy to get rid of. it is unbelievable, how much detail there is in deep shadows, also made possible by the camera delivering 14 bit files. and the 14 bits really add something, 14 bit mode (only single shot delivers 14 bits, I compared single shot results with low speed continues), at iso 50 and 100, has at least one stop more dynamic range. from iso200 and up, there is no real difference, which makes sense, since the dynamic range form that sensitivity upwards is not high enough to need more then 12 bits.

and If you want to sea this for yourself, just download some RAW files from IR, the ones with the black box in it. and compare the a900 results with those of the a900. push bot 4 EV and see the difference. hard to argue those results.


Its not fair to compare ISO 50 DR on a99 with ISO 200 on a900 since you in some situations (handheld)can't use ISO 50 because of a lower shutterspeed. So please compare ISO 200 to ISO 200 etc.

Kind regards

 Cartagena Photo's gear list:Cartagena Photo's gear list
Sony Alpha DSLR-A900 Sony 70-200mm F2.8 G Sony 20mm F2.8 Adobe Photoshop CS6 Adobe Bridge CS6 +6 more
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