Spots on the viewfinder.

[TME]

wow... quite ex for a brush.. anyone used that? effective?

i know the arctic butterfly cannot reach to clean the dust at the viewfinder.. i wanna use it to do sensor cleaning instead of the blower. that will prevent dust from entering the viewfinder.

The dust on the viewfinder will not enter between the prism and the focusing screen... I think it was there from the factory, just that you didn't observe it. Otherwise you must have gone to somewhere really dusty and changed lenses...

 

[Shoooters]

The dust on the viewfinder will not enter between the prism and the focusing screen... I think it was there from the factory, just that you didn't observe it. Otherwise you must have gone to somewhere really dusty and changed lenses...

Dust from the factory?.. i don't think so. dust in the viewfinder are mostly caused by blower, the more you use the higher the chance of dust getting into the viewfinder. don't believe you can try it yourself. blow it for at least 50 times (full blast). but before you do this, make sure your DSLR is still within warranty period, in case it gets dirty, you can send in for free cleaning .