The NEX 5N is better at high ISO's than the A99 :-(

Troj is right on point

...and treatment of the RAW files: did you let the camera process them (if so, there are dozens of settings combinations that potentially could be used in each cam) or process them yourself (if so, have you acquired the skills to extract the best out of the files, with literally thousands of possible develop setting combinations that can be applied to each of the images compared).

Am interested in a true comparison but without these details a conclusion cannot be drawn.

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- AlanS