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Canon XL1S / XL1 Watchdog
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Old July 20th, 2002, 09:03 AM   #1
piersbailey
 
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Lens Cleaning

I have a an XL1s with the standard 16X lens. Recently I had to clean a small dot from the front outside face of the lens with a small amount of alcohol. Can any one tell me if the outside faces of this lens have protective coatings or not.
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Old July 20th, 2002, 03:34 PM   #2
Warden
 
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The front element of the standard 16x lens is multi coated. The multi coating used on exposed surfaces is very hard and not easily damaged.

Jeff
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Old July 20th, 2002, 08:42 PM   #3
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FWIW: The front element is a piece of plane optical glass, its purpose is to protect the internal VAP elements which is the next item in the optical path.
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Old July 20th, 2002, 09:25 PM   #4
Warden
 
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Don,

Are you saying that it's not multi coated? I'm holding the lens, looking at it in the light and I sure see a multi coating.

Jeff
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Old July 21st, 2002, 10:02 AM   #5
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Speaking about cleaning spots, what about filters? I had some spots on my multi-coated polarizing filter and didn't have any lens cleaner with me, so I hesitantly used generic glass cleaner. Is this not recommended?
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Old July 21st, 2002, 12:04 PM   #6
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It no doubt is coated. But it is not an active (refractive) element. It is there to protect, much like flks use a UV or skylight filter to protect the front element.
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Old July 21st, 2002, 12:18 PM   #7
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Don,

Thanks for making that clear for me.

Jeff
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Old July 21st, 2002, 12:21 PM   #8
Obstreperous Rex
 
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Still a very good idea to *always* have a UV filter on the front though, it's cheaper to replace if it gets scratched.

Rob -- for those filters, if that's all you have at the moment then it shouldn't hurt things too much. I wouldn't make it a regular practice though.
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Old August 16th, 2002, 02:17 AM   #9
cremagine
 
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Lens Cleaning

I normally just use those new polyester cleaning rags, which work pretty well, but I was wondering is a Windex or some eye glass cleaner safe to use on the lens? And I do know that a UV filter is the best but....are these glass cleaning products safe? Also what are others using to clean their lenses?
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