HDR processing using Photomatix. A lot of noise don't you think? ISO 400 so I don't get it unless it is designed to go with higher resolution camera's. Mine is only 6 megapixels. New one this year.
Depending on the selections in HDR, a lot of noise is possible. However this can be reduced using another Nik plug-in or just LR4. Another way of course is to shoot at iso 100 with f/11 or higher.