Is this dust on sensor or something else? The whole photo has more than 100 spots. It's taken by f22. Should a dust appear as more darker spot? I seldom change lens and only change in the room with no fan, no big movement, quickly done and camera facing down but still .... this is what I get. I try to blow it with the blower but they still remain there.
I really don't understand how the dust went in and how come it's that many......
I alwys keep the camera in teh dry cabinet so it should't be fungus ......
Here's the photo :
Here's the 100% crop :
Please help ... Thanks