Nikon made a third recall for the d750 model. This time the shutter doesn't work as fine as it should. Nikon said that cameras made between December 2014 and June 2015 may exhibit these issues. Nikon want to repair the cameras but we didn't pay for a refurbished camera, also this repair is very difficult and dangerous and not all the official technical service have the tools and experience required. Nikon should change the affected units for new ones according to warranty because this is a design fail. We didn't pay for a refurbished camera so we want Nikon to replace affected cameras for new ones.