Luminous Landscape Forum
Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: hovis on December 17, 2009, 03:22:49 pm
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Hello
I've just bought my first circular polarizing filter and have a question. When I hold it up to the light at an angle I can see an uneven fogging (not sure how else to describe it), is this normal? It doesn't seem to be visible seen directly through the glass so I was just wondering if it's supposed to be like that?
Thanks
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Hello
I've just bought my first circular polarizing filter and have a question. When I hold it up to the light at an angle I can see an uneven fogging (not sure how else to describe it), is this normal? It doesn't seem to be visible seen directly through the glass so I was just wondering if it's supposed to be like that?
Thanks
Hmmm.. Doesn't sound right... Can you post a photo of what you're seeing?
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It's likely to be crud from outgassing in the packaging materials. Try cleaning it carefully with lens tissue and lens cleaner.
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Hi Bradley
I've attached a photo, hope it's visible, I'm not sure if I've done it right or where the image will appear.
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seems to have uploaded ok.
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Hi Bradley
I've attached a photo, hope it's visible, I'm not sure if I've done it right or where the image will appear.
That does not look right to me. Did you buy a good brand (expensive!)? Or, maybe it was damaged. CPs are difficult to make well and I have heard that they are one place you do not want to save a little money.
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It's a Hoya, one of their 'super quality' range. I'd heard the same thing so I went for one that I thought was going to be good. I'll have to get in touch with the shop.
Thanks
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not to restate the obvious, but did you try cleaning it with a proper lens cleaning kit? perhaps a lens pen? that doesn't look right. What do the pictures you take with it look like?
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It looks dirty. Clean it. Seriously.
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Hi Everyone
I had considered that it's just dirt so I will try cleaning it, I just wanted to know what I was looking at and whether it was supposed to be like that.
Kind regards
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I purchased one of Hoya's best thin circular polarizers two years ago and shortly later found its surface to have a finely pebbled appearance. No amount of cleaning nor various solvents would remove it.
I replaced it with a Kaesmann.
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I purchased one of Hoya's best thin circular polarizers two years ago and shortly later found its surface to have a finely pebbled appearance. No amount of cleaning nor various solvents would remove it.
I replaced it with a Kaesmann.
The S-HMC coatings seemed to be pretty fragile.
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I gave it a clean and there was something on the surface but whatever was there has marked the filter permanently, there is a very faint pattern identical to that of the dirt. I'm waiting to hear back from the supplier.
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Obviously I have no idea how you stored that, but dirt that leaves an etching in the glass surface sounds a lot like fungus. If it was ever stored in a dark humid environment, fungus is possible.
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"The S-HMC coatings seemed to be pretty fragile. "
Yes, real fragile, as I only used it twice and it stayed in a protected case the rest of the time!
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"The S-HMC coatings seemed to be pretty fragile. "
Yes, real fragile, as I only used it twice and it stayed in a protected case the rest of the time!
I was shooting some photos of Minneopa falls and the spray (clearly polluted) ate through the coatings.