Seems to 5S have more accurate noize-reduction algorithm then 5. See middle-center-left scale from 22 to 28.
What's that "Ichi"?!
Looks like NEX7's son, who was sick :(Designers J1 are on vacation?!But, tech's very well.
Good sensor! Nice lens for travel. Poor design. Kvadratish :)
Very good RAW quality NX200! But 1600+ iso -- lot of noise.
Very good stylish strong design, good sensor (likely), 700$ -- too expensive, but after half year may by down to 500$.
Peter K Burian: I have tested the a77 and it produced GORGEOUS high ISO JPEGs. All you need to do is use the Multi-Frame Noise Reduction feature (accessed via Auto ISO) OR the similar Handheld Twilight Scene mode. (The template form of reviews and comparison photos does not seem to lend itself to a testing of unusual features such as this.)
See one of my ISO 5000 JPEGs at https://picasaweb.google.com/110698711952841559844/SonyA77ISO500FABULOUS#
The camera snaps six photos very quickly. The Bionz processor micro-aligns them to minimize the effect of any camera shake, allowing for sharp shots at surprisingly long exposures. It then composites the six captures into one, discarding most of the noise data for clean photos even at very high ISO. (My ISO ISO 5000 photos resemble those made at ISO 800 without this feature).
The fully-automatic Handheld Twilight Scene mode is identical but overrides are not available when this mode is used; the camera controls all aspects of the image.
No noise, but no thin detail :(
If you look a little left of center in the RAW mode (where the white letters on red background), beginning with 1600 ISO A77 loses everything, even Sony NEX5...