hi going to try hd filters buying lee type exsp but reviews are good but i see they come in different sizes my lens is a sigma 10 20mm have £300 so would you buy a kit or buy separate at the moment I photograph anything and every thing
^^ plus 1. If you have the money for Lee, then you should buy Lee. Why spend money on something you will only have / want to replace again later.
I have wasted £100's if not £1000's buying second best due to lack of budget, only to sell it at a loss to upgrade after a short while. Now if I can't get what I want immediately, I just wait until I can.
Keep an eye out for used Lee filters. I picked up a few here that where advertised a having slight scratches for around £30. The scratches are so light, they make no difference whatsoever to the image.