jjmucker wrote in post #2133033
no reason mate.i could go for sigmas. how much and what type. does it make a big difference to you photos?. sample please?

I don't have a side-by-side comparison, but in this thread I have a couple of shots; posts 55 and 62. It's great for getting deep blue skies, cutting down on foliage wash-out, and reflections from water and glass. I have the 77mm and 52mm CPLs (Adorama SG77CPLEXW and SG52CPLEXW), which were US$140 and US$60, respectively. (The 72mm is SG72CPLEXW, US$125.) Both are designed for digital cameras ("DG"), threaded for lens caps, and multicoated. The 77mm is shared by my Sigma 10-20 and Canon 17-40L, and the 52mm is for my 50mm 1.8. I use my 50mm for outdoor available light portraits and candids, so if there are reflections in glasses or eyes the filter helps reduce or eliminate them. If you can afford the light loss (1-2 stops), then they are great. I rarely shoot without them.
"Raw" is not an acronym, abbreviation, nor a proper noun; thus, it should not be in capital letters.