Having problems with your Canon EOS 450D Digital Camera ?

My canon eos 40d has smudges on the mirror inside, how do i clean safely?

Answers :

You can use either cotton swabs or lens cleaning paper.
The cotton swabs must not be used without a cleaning liquid, as they leave cotton fibers when used dry. Do not apply pressure on the mirror when cleaning and always use clean swabs.

As a cleaning agent you can use the following:
1) acetone - perfect for grease but unfortunatly also eats some plastic. And leaves some residues on the surface.
2) Methanol - better concerning residues, but not as good acetone to remove sticky dirt
3) Iso-Propanol - evaporates without traces

So the best practice is to use the three in sequence:
1) Dip the a clean swab in acetone, remove excess acetone so that it does not spill drops. Move swab once across the optic element. Do not go back and forth over the optic with the same swab - instead take a new one.
2) Repeat step 1 with methanol
3) Repeat step 1 with Iso-Propanol

It is absolutly important, that the acetone, methanol and isopropanol are free from contamination. Acetone you can find in nail polish remover or the like, is not pure.

If you want to save some money, try just with either isoprop or methanol.
Hi dear, You can clean with the lens cleaner. Use the Kodak lens cleaning paper only.
Repair Help & Product Troubleshooting for Canon EOS 450D Digital Camera

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My canon eos 40d has smudges on the mirror inside, how do i clean safely?

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