Dust Dust Dust!
I am a real tonsil somedays - I changed lenses on the beach and got massive amounts of dust on my mirroe and sensor (yes I lifted the mirror on the beach and blew onto the sensor in and attempt to clean. NEVER do this - it just sent sea spray onto the sensor.
Pics attached show the level of dust and how ACR can clear it.
|Black on White by RaVN11|
|Hummingbird and Bee by dibilio57|
from A Big Year - birds
|xheneta iseni _for DPReview by Mike Slade|
from - My Fair Lady - (Portraits in Full Colours Only + A Border)