Polarizer Filters

[HDNitehawk]

1. What is real purpose (advantages and drawbacks) of slim version and normal version of CPL filters? Is it worth to pay more for slim?


I know one drawback, that slim version has its own cap which is not so good to use.


2. I know, that there is normal type of filter, slim and the third, a little bit thicker than slim, which has small front thread for normal lens cap. And this is the most expensive. So.. i think if the slim version is better (depends on benefits), then it is better to pay a little more and get thicker slim version but with front thread. Am i right?


3. Which manufacturer? I read, that in the world is only 3 manufacturer and they produce all filters to resellers, which sells filters with its own name.

I have B+H CPL so my answers are based on those.


1, If you are not stacking the filters it wouldn't be worth the extra money. I have never had any CPL vigenette at 24mm. If you go wider than 24mm athin filtermight be needed, I have a thin polarizer for my 16-35L II. At 24mm no you don't need it unless stacking.


2. I just bought this, [View:http://www.bhphotovideo.com/c/produc...gital_MC.html] just the other day,it is expensive and thin with threads, but you could always go thin and stack the CPL as the last filter, B+W sends a lens cap for the thin filters with the filter.


3, I only do B+H so if you can't get B+H I am not much help.

Bryan mentioned in its reviews, that both slim and normal version of polarizer filters in certain conditions (with wide angle) shows unevenness. There is written, that this effect was noticed with ~ 20.8 mm focal length.

This is more the nature of a CPL, and it differs in relation to where you are taking a picture and where the sun is. It is more noticeable on a wide lens because you are catchinglarge portionof the blue sky in the frame. On a telephoto lens you are just catching a piece of the sky so you wouldn't notice it as much if at all.

About B+W filters i do not see anything in my country. I tried to find any technical information about B+W (and other filters) filters, but all i can find is only advertise on the e-shops and marketing papers.

Even where I am at in the US, occasionally I can find one of the low end B+W filters at a local shop. They would never have a CPL or high end MRC filter. I always have to order on line, if you can get one online that might be the way to go.