Easiest way to clean.

[CanonGuy]

I just noticed that I got something on my viewfinder so what is the easiest way to clean it? It's like some dust "ball" middle of it but it didn't come of with air blower.

 

[candyman]

Usually the blower should do the job.
But there are other tools. You may find some info here: http://www.cleaningdigitalcameras.com/methods.html

 

[Loswr]

Where did you blow? Assuming it's inside and not on the exposed glass of the VF where you put your eye, you'd need to blow into the mirror box (lens off, camera off is fine). Note that you should NOT be in the manual sensor cleaning mode, as the foreign object is above the mirror.

 

[CanonGuy]

Can you clean viewfinder with soft paper or cloth? Like just took the eyecup away and gentle and carefully cleans it?

 

[Loswr]

This is on the outside of the VF? Sure, you can clean it like you would clean any other optical glass surface - I use lens cleaning solution and lens paper (or a pec pad) wrapped around the end of a cotton-tip applicator (a Q-tip would do).

 

[CanonGuy]

http://a.img-dpreview.com/reviews/CanonEOS30D/Images/viewfinder.jpg < What I've been talking about

 

[Loswr]

Looks like reflections?

 

[CanonGuy]

No, it's more like something sticky on it. But so you can clean viewfinder with cloth without breaking something?

 

[Loswr]

Absolutely, yes. The viewfinder eyepiece is just a piece of uncoated optical glass. I had thought you were talking about dust inside the viewfinder (which is usually really dust on the focusing screen within the mirror box). Cleaning the outside is fine. At need, I've wiped mine free of condensation with the edge of my T-shirt.

 

[CanonGuy]

Well I've attached my 17-55 F2.8 all the time and clean it when it have been dusty

 

[iaind]

If you must just bung it in the washing machine or dishwasher with plenty of n***n glass

 

[Mt Spokane Photography]

The 5D MK II is known for getting dust inside the viewfinder, and it happens to other bodies as well. Its best to leave it alone, but, if you must get it out, you might need to remove the focus screen and risk getting the dust on the sensor, which is mucho worse. If its on the eyepiece side of the viewfinder, I use a q-tip dampened with lens cleaning solution.

There are a number of places that dust can sit on, the mirror, the bottom or top of the focus screen, etc. Determine where it is before trying to remove it.