I need some help. I have my d3300 since august 2015, been using it a lot. I think i took some pretty photos in this time, but in january it suddenly started to seem not so sharp, very ghostly pictures. I have this problem on the 18-105 VR Nikon lens...with another lens the photos look better. I even use tripod, so even if the images seem to have a bad focus or moving, i asure you the camera has not been moved at all, and used autofocus. I put some photos for reference.