Ahead of getting trigger happy with a fully-working D3200 -- rather than the pre-production unit from our hands-on -- we've been checking out some official 24-megapixel samples on Flickr. To our eyes, the images befit the smaller pixel size, namely sharp and high-res, but with a good dollop of noise on the side. Albeit completely unscientific, a blowup compared to an image from the similarly priced Sony NEX-5N looks grainier at the same 1600 ISO. On the plus side, the JPEGs show almost zero com