okay now I am REALLY confused (cleaning content)

[strumstrum]

okay I change lens quite often so I am aware I might at some point need to clean inside, and today that day came, or so I thought, so if someone can riddle me this id me mucho appreciated as it has miffed me..

spots on the image, clean lens try again, spots on the image, get the blower on the inners tray again, spots on the image.... damn I thought now im going into scary territory so I g**gles for help on sensor cleaning etc.. and found a possible solution that I thought id try with the feeling that this is not going to work..... in P mode I take out battery I put it back in turn on and reset all settings and try again, image perfect...

how and why did that happen?

Ta

 

[Arkady]

New one on me...maybe it did an automatic 'dust-off' somehow...?

Canons do some wierd things you know...

 

[MisterE]

Maybe you've taken a picture at a wide aperture where the dust is not apparent.

 

[mrtoad]

it takes a really small aperture to show spots on the image
normally its the mirror which has the gremlins...the focal plane

i would not!!!!! try to go inside the front element nor even attempt to do anything with the rear unless its absolutely necessary

i just did the front element on my oly C765 boy racer and got some what i thought were largish specks of fluff and a spot of mildew?

the spot is still there at the bottom centre of the pic on f8 and focussed on a near item
trying to do the front to back dof thing

it must be way in there on the deeper elements.... and i aint boldy going there when i can replace the cam for 140

 

[HoppyUK]

Maybe you've taken a picture at a wide aperture where the dust is not apparent.

^^^ Sounds favourite

If you get spots on your pictures, they are from spots on the sensor, but they are only visible at high f/numbers when depth of focus (not depth of field) is sufficient to make them clear. Most of the time, at normal f/numbers, they are so blurred as to be almost invisible.

Dust on or in the lens is invisible.

Dust on the mirror is invisible.

Dust visible in the viewfinder is dust in the viewfinder, usually on the focusing screen (above the mirror).