Uv(o) & Uv(n)

[Stress]

Can anyone enlighten me the difference between UV(O) & UV(N)

Recently I bought a Hoya HMC UV filter and it stated UV(N) while my old Hoya HMC is UV(O)????

Anyone know the diff???

Thanks

[rOnGrEn]

This thread might help ?

http://forums.clubsnap.org/showthread.php?t=279320

cheers,

[ExplorerZ]

when in doubt, UV(New) and UV(Old) < just kidding anyway UV(N) is meant to cut down cost on production... quality wise, I think no one can bet that it is not as good.

[Stress]

Thanks....now i understand. Tested Super HMC vs HMC, no diff in pic quality. I think SHMC is the latest technology. I saw somewhere Hoya UV(O) {without coating} for less than $15.

Thank you Bros....

[calebk]

Originally Posted by Stress Thanks....now i understand. Tested Super HMC vs HMC, no diff in pic quality. I think SHMC is the latest technology. I saw somewhere Hoya UV(O) {without coating} for less than $15. Thank you Bros....

Normally, the difference in filters is very unnoticeable (unless you're comparing a uber-cheap china brand to Hoya/B+W). The usual differences are flaring, ghosting, colour cast.

[tankm]

UV(O) - Optical glass
UV(N) - Normal glass to reduce cost. At least it's marked as "N" or we will never know about it.

Optical glass better than Normal glass.