On Sun, 02 Mar 2003 16:39:51 GMT, Colyn <colyng@swbell.net> wrote:

>On Sun, 02 Mar 2003 16:26:30 GMT, d_ruether@hotmail.com (Neuman - Ruether)

>wrote:

[...]

>>My main complaints about Tiffen are not the lack of

>>coating, but the "self-fogging" effect (odd, but I have

>>observed this for years with different eras of Tiffen

>>filters - after about 3-6 months, a uniform fogging needs

>>to be cleaned off, whether the filter is in any kind of box,

>>or on a lens...),

>I only have one Tiffen filter (red #25) and have nver had the fogging

>effect you speak of.. Maybe its the area you live in..or are you a

>smoker??

No. Check yours carefully, at an angle in good light, or

with a small light shining through it. The fog is enough

to diffuse images noticeably, but not overwhelmingly...

>and the poor rims...

>>

>My filter seems to be built pretty good..

The Tiffen filter rims are unusually deep, making their

use on many wide-angles unwise...

>I have various makes of filters. Some were given to me and most I

>never use..But my overall experience with filters is the expensive

>ones are no better than the cheaper ones..

I agree, with the exception of Tiffen and REALLY cheap

ones...

>They are all made of optical glass except the very cheaply made

>plastic (Cokin) ones with simular properties..

Tiffen are often sandwiches of two sheets of glass

and a color layer instead of being dyed-glass, a

preferable form - and many are uncoated, unlike most

others. I prefer single-coated Hoya filters as

"good enough"...