Hey Guys,
I have a question. I am a beginner to photography and I am using a Minolta Maxxum 7 and a Sigma 28-300 Lens. I love the versatility of the lens, but now I am very confused about filters. I am looking for a polarizing filter but the appear to have a "size". I was looking on the B&H website and they have many with different "mm"'s. I am looking for a good filter that I can use outside when I shoot wildlife and landscapes. Could some one please tell what the difference is in the millimeters on filters?
Thanks!!!!