First, read this advisory note from Sony (reported via here first, here and here subsequently):-http://support.d-imaging.sony.co.jp/www/dslr/information/news/top_slt-a55a33.html(in Japanese)So, we have these information, officially:-(Source: Sony Japan HQs; Table English via Engadget)The in-body "Image Stabilization" (aka Shake Reduction or SR in Pentax' term) does actually heat up the sensor
