According to chipworks the 24.2 megapixel APS-C sensor inside the entry level DSLR Nikon D3200 is made by Nikon. Few days ago chipworks published a report that Nikon V1 uses sensor made by Aptina, On May 1, 2012 Italian website (marsicalive) published a rumor that Aptina is developing affordable full-frame sensor for Nikon D600 (see full the news here),
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Src - chipworks / via - NikonRumor