For people into UV filters

BiscottiGelato

http://www.lenstip.com/113.4-art ... ts_and_summary.html

I don't agree with their conclusion. But their data is definately revealing.

Why I say I don't agree with their conclusion, is they placed too much emphasis on UV reduction. For DSLRs and other modern applications, people use UV filters for protection anyways, so transmission, flare resistance, build, easy to clean, etc is a lot more important. Thus if you look at the top Hoyas vs B+W, you'd see that B+W have a much better and smoother transmission range with less fall off on high and low frequencies. Not to mention the better build and superior MRC coating (for cleaning) that B+W has.

Also put into perspective is how overpriced Heliopans are, and how crappy Tiffen, etc are....

shutterbug

Nice test...but my eyes are getting old or something, there is no difference (to my eyes) between Hoya HMC or pro1.  Even B+W MRC vs HMC, not much difference to me.

chobit

Can't say much about the results from the review there. ... but I use Hoya S-HMC filters for most of my lenses, then a couple B+W coated version as well...!  I have little complaints for their optic quality.  The B+W does appear to have better build than the Hoya.

快樂牛郎

I used the Sigma DG for the first time for my shots in the other thread.  Not too sure if there's any difference but I will leave it on from now on.

Catpiano

Well ..  I kind of agree that most of those filters..  not much different in "QUALITY"  but mainly Construction ...  ( I am sure people with Hoya will agree .. lol )

From Hoya HMC, S HMC, Pro 1, Heliopan, B & W, Nikon .. I dont really see any different at at all ..  ( I am old too .. and I dont SMELL pic .. )

However, those cheap "GREEN BOX" hoya, tiffen, and some  off brand filter (crystal? whatever)  I can see the different right the way! ( seems non coated or just single )

However, some people I know, they HAVE to use B&W, or even helio wor ..   

siumaibb

However, some people I know, they HAVE to use B&W, or even helio wor
Catpiano 發表於 2009-6-25 07:13

I think filters are more important in film days with no PS. With digital & PS, I think you can do most thing that a filter can do.

Catpiano

Um ..  it is true Siumbb .. but we are talking UV ..

I still hv CPL .. ND .. CND ..  Cross ..  soft centre .. blue .. dark blue .. .. red .. orange ..  green ...  star .. Satu ..  etc etc filter ....   and I DON'T use them now at all ....

And they are not cheap ..

chobit

There is actually a simple test you can do to compare the diff. between a cheap filter vs higher quality Multi-coated one.

Find a room with a celling light.  Put the filter on top of a piece of paper on top of some white paper with black text...,.. then see if for yourself..!  And Hoya Rules =P