UV filter question

[ozonejunkie]

G'day All,

Just wondering if someone could tell me the difference between a UV[N] and a UV[0] filter? They are both identical as far as I can tell, except for the name on the box. Any suggestions?

Tristan

[radar]

Hi Tristan,

have a look at the Hoya site:
http://www.thkphoto.com/products/hoya/

It has a lot of filter info, I assume that UV[N] is for Neutral.

FWIW, I use a UV[0] filter on my kit lens.

HTH,

radar

[ozonejunkie]

Ahhhhhhhhhhhh - Now it makes sense.

I don't actually have the packaging for a UV[0] filter here, so i didn't think about it. However, on the back of the container it says:

"Using high technology development processes, HOYA have produced a UV(N) filter which asorbs unwanted light rays in the UVB, UVC & IR rnages, without affecting color balance in the visible range."

I just thought that was the standard advertising stuff, but it makes sense now.

Thanks
Tristan

[stubbsy]

But Tristan I'd expect ALL a UV filter of any type should be filtering out is UV light so in dslr terms it should act just like plain glass. I can't seem to find any references to UV(N) anywhere excpet on eBay.

[ozonejunkie]

But Tristan I'd expect ALL a UV filter of any type should be filtering out is UV light so in dslr terms it should act just like plain glass. I can't seem to find any references to UV(N) anywhere excpet on eBay.

That would make sense, as that is where I bought the filter from. . . .

I don't really mind at all, all I need is a hunk of cheap glass to protect my expensive glass.

I was just curious.
Tristan

[poiter86]

Extract from Hoya's website ....

UV(0)... "Absorbs the ultraviolet rays which often makes outdoor photographs hazy and indistinct. A muliti-purpose fine-weather filter for color as well as black and white films. Also serves as a permanent lens protector."

UV(n)... "Mounted in an ULTRA slim 3mm ring, this is the ultimate in clear filters. Made from completely transparent superior grade optical glass, it will not affect the color balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks and scratches."

Seems like the UV(n) has better glass which lets more light in with minimal distortion. It also says that it has an ultra slim ring, which would suit wide angle lenses, but i was under the impression that you can get UV(0) filters with slim rings as well.

Hope that helps

Pete

[ozonejunkie]

Thanks Pete. I can't argue about the optics question, as my eyes are not that good, however, there is no discernable difference in the thickness when comparing the UV(0) & UV(N).

The optics thing makes sense though.

Thanks
Tristan