Dust in 50mm 1.8 lens

[Rebel XT]

I was trying to figure out where a tiny dark spot on the view finder on my 350D came from, I shined a flashlight into the lens and I was totally disgusted to see a dozen of speckles of dust inside the lens, one of them is quiet large. By the way I still couldn’t figure out the dark spot in the viewfinder, I swapped my kit lens on and it’s still there.

[stupot]

dust that you see in the viewfinder is on the focus screen. take the lens off, look up inside your camera and you will see a ground glass screen. dont touch it, just blow off any dust with a rocket blower.

dust that you see on your photos is on your sensor (it looks like dark out of focus smudges, becomes apparent at small apertures). you can use a blower on the sensor - enable cleaning mode on the 350d, the mirror flips up and you can give it a blow again, dont touch it!, or you can use another cleaning method.

dust on your lens is highly unlikely to affect your photos.

[Rebel XT]

Thanks, I feel much better now.

[Digitalwave]

Yeah, any dust in or on your optics is very very unlikely to ever be noticable in a photo.