> You bring up a good point. Adding another glass/air surface can cause a
> problem. A hood is the best insurance one has against this added surface
to
> cause a problem at all. The reason you use a UV is to pull out the blue
in
> high altitudes or near the ocean. Aside that they gain you nothing. UV
> filters are defined by L #s. The higher the # the better the filter to
> eliminate UV. Hoya is an L39 but the new Super HMC Pro UV are L41.
Nikons
> and others are L37 (surprise!).
> To see if your UV is worth anything, place it on a flurescent light (light
> box if you have one). If the UV turns a yellow tint with the light on its
a
> decent filter. If it does nothing, its junk!
>
> Peter K
I have here an almost new Hoya Skylight 1B filter, both sides coated. It
seems to do nothing on florescent lights, nor looking through it at
daylight. I've never noticed any difference using it. Even the photos on the
case showing what it does don't look any different to me. I bought it
because I thought I needed it. I'm not using it now, likely it will sit in
my case until I have a situation such as salt spray, or a sand storm to cope
with. It does seem to have an ever so faint pinkish hue to it when it's on a
perfectly white surface.
Comments?
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