Re: Polarizing Filters and Olympus E500

On Sat, 16 May 2009 21:59:17 +0200, Ofnuts <o.f.n.u.t.s@xxxxxxxxxxxx>
wrote:

Ron Wood wrote:
Hi Group

Have just bought/tried a Polarizing Filter from that well known auction
site:

http://shop.ebay.co.uk/?_from=R40&_trksid=p3907.m38.l1313&_nkw=52+52MM+CPL+Circular+Polarizing+filter+for+Hoya+Kenko&_sacat=See-All-Categories


But not much effect, should I have bought a special filter suitable forDSLR?
I have a Cokin Filter Holder (A) but was reluctant to spend £30+ until alittle
more knowledgable.Any suggestions?TIA, Ron

Modern SLRs and DSLRs require a "circular" polarizing filter since the
old "plain" variety make the autofocus malfunction. Other that that
there are no other "special" requirements for DSLRs. Good filters are
multi-coated to avoid reflections which produce haze (Hoya calls it
"HMC"). 30 pounds is a decent price for a multi-coated polarizer. For 6
pounds you'll likely get a piece of junk. Unlike other filters, the
polarizing ones are manually controlled, so have human factors
requirements (no too tight to turn but not to loose either) which also
have a price.

Before mindlessly spouting the usual "you get what you pay for"
net-nonsense, I suggest that you test the polarizing strength and
homogeneity of the polarizing layer in those "high priced is better"
name-brands of filters that you ignorantly whine about and promote to
others.

I have done tests just like that and found that many of the $50-$90
polarizers are often worse or no better than $5 bargain ones. When tested
against, compared with, lab-quality polarizing material the $50-$90 filters
often showed large density striations in the polarizing layer and lower
overall polarizing strength than all the bargain <$20 filters that I also
tested. Put your REAL experience where your mouth is, not your stupid
net-parroted nonsense. Or continue being the ignorant
marketing-department's sheep and fool that you are. Why do you think they
get away with this? Because of fools like you that live by that
oft-disproved adage "you get what you pay for." What nonsense, especially
in the world of polarizing filters.

Here's a freebie for you: an HMC $60 Hoya polarizer tested THE worst of
all, worse than even a $5 generic polarizer. Now go out and buy and test
some others, you need to pay for your education--one way or the other.



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