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06-13-2011, 02:53 PM   #1
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so she decided to spray paint in the house....

well to make a story short, my k10 and some lenses (including glass) got a dusting of rustolium. what can I use to get it off without wrecking the special optical coating? she used both oil based and regular rust proofing paint
any and all help much appreciated

cheers and thanks

06-13-2011, 02:57 PM   #2
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I know rustoleum do their own thinner. Might be worth asking them what's in it?

Not sure that helps.

Aargh.

I think you might want to consult a specialist. Fingers crossed they're insured.
06-13-2011, 03:01 PM   #3
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I have no idea what you should do, but your tagline says you want a K5 no matter what she says.

I'd say you now have grounds for getting that K5.
06-13-2011, 03:31 PM   #4
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Rust-oleum have many many type of paint
Normally a paint thinner will do the job just after the paint is apply.

Otherwise Goof Off will do it but I have no clue how what this will do for your lense

06-13-2011, 03:40 PM   #5
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Paint thinner should work on the glass, and that SMC coating is pretty durable if you don't rub it with anything other than a microfiber lens cloth (and even then, rub gently). Abrasion more than chemicals can cause damage...

I used nail polish remover on a front lens element that my kid (gotta love 'em) put a thomas the tank engine sticker directly onto. The stick-um was most intransigent, but the nail polish remover got it off in a gentle wipe and the coating was perfectly fine.

Of course, that K10D is most definitely trashed and a K-5 is really the only reasonable replacement.
06-13-2011, 04:50 PM   #6
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Read the paint can, too many different formulas to get a clear answer here. Goo gone and goof-off only work on dried latex paint. Acetone usually works on dried oil base paint but I have no clue what it will do to the lens.

As you are in CA we can at least hope she did not kill the evap coil in the AC unit. Yes, boys and girls spray can paint can ruin them.
06-13-2011, 05:31 PM   #7
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I would try a very weak mix of paint thinner and water. Start out very diluted and if it's not enough slowly move towards a stringer mix. Straight thinner will probably ruin the lens coating, that's why I suggested starting with a very weak mix. Good Luck!
06-13-2011, 05:41 PM   #8
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QuoteOriginally posted by slip Quote
well to make a story short, my k10 and some lenses (including glass) got a dusting of rustolium. what can I use to get it off without wrecking the special optical coating? she used both oil based and regular rust proofing paint
any and all help much appreciated

cheers and thanks
You're K10 is ruined.
Get a K-5!

06-13-2011, 06:45 PM   #9
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It's dust.

Its dry.

It should be rather easy to remove.

Start with Oxy clean and water. Micofiber towels and dry with a fan.
06-13-2011, 07:57 PM   #10
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Some lens cleaners for eyeglasses have alcohol in them. I would start with water and alcohol before i went to anything stronger. And start work on your cheapest lens first. Find out what the professionals are using is another suggestion. I remember about 3 years back, a guy posted on dpreview about seagull dropping a load on his Tamron 18-250 lens. A local camera shop tipped him off to an excellent cleaner, which i can't remember the details on.
06-13-2011, 08:14 PM   #11
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Get the K5 while you have the goods on her.
06-13-2011, 11:05 PM   #12
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QuoteOriginally posted by slip Quote
well to make a story short, my k10 and some lenses (including glass) got a dusting of rustolium. what can I use to get it off without wrecking the special optical coating? she used both oil based and regular rust proofing paint
any and all help much appreciated

cheers and thanks
I don't know what lenses you have but acetone will not harm the SMC coating. I soaked the glass elements from Super Takumar 50/1.4 in acetone overnight trying to eradicate fungus. Acetone will take off dried paint flecks from your glass elements quite easily. I don't know what acetone might do to the SP coatings found on the new AF lenses or whether acetone is hot enough to affect the plastic bodies or not. Naphtha (lighter fluid) should be safe to apply to plastic parts and it might take the paint flecks off the camera and lens body. Don't you have a closet or two reserved to store your photographic equipments? :ugh:

Thanks,
06-14-2011, 04:35 PM   #13
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QuoteOriginally posted by KxBlaze Quote
I would try a very weak mix of paint thinner and water. Start out very diluted and if it's not enough slowly move towards a stringer mix. Straight thinner will probably ruin the lens coating, that's why I suggested starting with a very weak mix. Good Luck!

Thinner is petroleum (oil) based. You know what they say about mixing oil and water?

In short, it won't work

I agree with the other poster that it's likely just dust, unless your camera was very close to the painted surface.
06-16-2011, 02:11 AM   #14
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I would ask the manufacturer which solvents are recommended to remove the paint, and then ask pentax directly if these solvents are susceptible of altering the SMC coating.
You may give a try to isopropyl alcohol, it's what is used in most of the lens cleaner kits., and for sure doesn't harm SMC/SP coating.
06-16-2011, 02:24 AM   #15
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are you insured for accidental damage, by the way?

My K10d was pulled off the sofa by my toddler, which damaged the SD card slot beyond economical repair (the impact damaged the main board where the card slot joins it as far as I can tell) so I got a K-7 off my insurance company as a replacement - and my renewal quote has just come through and it's only gone up by 30 per year.
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