If the dust spec is in focus on the OM-4 then it's probably actually on
the bottom of the screen. My first choice would be a new, soft bristle
artist's paint brush to brush the dust away but I wouldn't have any
qualms about brushing lightly with a Q-tip either.
If the dust spec isn't in focus then it's on the top of the screen or
the bottom of the prism. The brush should still work but you'll have to
take the screen out to get to where the dust is.
I have washed screens in warm water with a tiny amount of liquid soap in
a wash basin. Rinse very well and lightly pat dry with paper towel or
tissue. Don't rub. I have also cleaned mirrors (after brushing) with
Q-tips dampened with alchohol. Use lots of Q-tips and don't rub hard.
I'm sure you'll get 100 more do's and don'ts here soon.
Chuck Norcutt
Philip Pemberton wrote:
> Hi,
> Does anyone know of a method for cleaning dust off the glass viewfinder
> and mirror of an OM10 or OM4? There's a large speck of dust on the '4's
> finder, right in the middle, which is incredibly annoying. The '10 has the
> same problem, except the aforementioned dust is on the mirror. Attempting to
> blow away the dust did absolutely no good at all.
>
> I was going to use a soft paintbrush, but I can't find one that hasn't been
> used. I've also got a Microfibre lens cloth that I use to clean my glasses
> (and the OM lenses), but I'm more than a little hesitant to use that on the
> innards of my OM... Would a Qtip be OK, or is that tempting fate?
>
> Anyone got any suggestions?
>
> Also - hypothetical situation - you accidentally touch a glass viewfinder
> with your finger while you're inserting it. Is there any way to get the
> greasy fingermark off, or does it actually damage the 'finder? I was thinking
> 99% isopropyl alcohol (aka isopropanol, propan-2-ol, among other things)
> might work, but if the finders are coated, it might damage the coating.. Just
> thinking out loud here, don't mind me :)
>
> Thanks.
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