on 5 May 2012
got this as one of the first filters i got. it was fun to play around and learn. but i soon figured out that is does blur the image slightly and if used with more filters gives you black corners. after few month i invested in to Cokin filters. dont get me wrong, for that money, it's a great tool, it's fun and easy to use. so get it, because you dont want to end up buying something much more expensive to find out that you dont need it or dont use it. i had blue, red and grey gradient filters of this type. now i know that i need only different gradients of grey and one solid blue.