under average circumstances, you should not be able to tell any difference at all. a very slight difference in color would have been the most i would have expected, and i suspect that a minor variation in the camera's auto white balance to be the main cause of that. the differences should be more apparent under flare conditions, but even then, unless one of them is multicoated while the other isn't, you should see little difference. both Hoya and B+W have multicoated versions. i presume you got the cheapest of each. B+W filter rings are slightly stronger and don't compress as much when you are gripping them to put on or take off. that means them spin easier in the filter thread.
Herb.... ----- Original Message ----- From: "Alan Chan" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, January 04, 2004 12:03 AM Subject: OT: Polarizer pictures, which is better, and why? > This has nothing to do with Pentax, but I reckon there are some experts here > might be able to tell the differences. I did 2 shots this afternoon with > identical setting just to see if there was any colour difference between > HOYA & B+W CPL. I turned the filters until they gave the deepest blue colour > possible. These shots were done with the Canon A80 because I do not have the > *ist D. Now called me naive, but I compared these 2 shots side by side at > 100% in Photoshop, and while there is some very slight colour difference > (could be due to the lack of precise angle of the CPLs), I would not be able > to determine which is better and found them equally good on my monitors. > Some comments I received from other forum suggested the HOYA one was > slightly "fogged", while another said he would buy B+W. What am I missing? > Why cannot I see the difference? I could "faked" their titles and tricked > people to believe the HOYA was B+W, and like vise, but I did not. I want > some honest opinion here. Anyone?
