polarizers

Save your money. Had seen others write that filter was assembled backwards and other flaws. They were right.

Cheaply designed and made. Get a Heliopan from Adorama, you'll be very pleased.

I have other Tiffen filters and I love their overall quality but I ordered this polarizer on-line and it was defective. After studying the lens itself, I found that it was assembled backwards! As you look through it from the male threaded side of the lens, there was no polarization but looking through from the female threaded side I would notice proper polarization (I set out a bowl of water with sunlight shining on it at an angle). I quickly returned this one and went to my favorite local camera store to purchase the same filter, at least I got to inspect it before buying. I highly recommend this filter but if you buy on-line be sure give it a close inspection as soon as you get it!

What a revelation! For the longest time I had been taking photographs without a filter only to end up with hazy skies and washed out scenes near the water. I got this filter before my honeymoon to Tahiti and as a result I came back with fantastick pictures. You simply turn the filter to get the correct angle for the UV rays. Clouds appear crisper and blue skies are much more vivid. The filter also helps to drastically reduce reflections particularly off of water surfaces.