Tiffen graduated filter
My graduated filter is Tiffen 77mm DIGITAL HT CLEAR/ND 0.6. I got this because it was recommended in Ken Rockwell website. I absolutely love this filter. There are a lot of things we can do in post processing but we can't correct overexposed photos. The filter blocks half of the field with this dark shade on the filter. The dark shaded area (kind of like sunglasses) is graduated to merge with the clear part so we can't tell if the picture was taken with the "graduated" neutral density filter. It's very useful when shooting into the sun or when there is too much contrast of exposure (like when shooting toward window on a sunny day. It's made of metal but has little plastic, light feel to it. Never had a scratch after 2 years of use (though not too much abuse). Here are some sample pics taken with this filter.