After having my camera for a while, it has started to make a louder, almost grinding noise when I take photos.  

 

Has anyone else had this issue?

 

Any ideas on wheat it might be?

(Dirt, dying, etc)

This month my a7 started making a weird shutter noise too, its not the lens.
I dont know anything about it or how to solve it   , i just keep using the camera until it breaks (shutter seems to be working fine)

i made a youtube video about it, but i just registered i i dont think posting url's in the first post is a good idea
but you can use the search term "sony a7 shutter sounds weird " on youtube

 

You might have some debris in the shutter mechanism. Just a guess. Probably a good idea to get it checked out before more damage could be done.