I was looking at getting some ND filters and saw a three pack on Amazon for around $45. I just wanted to try these out and didn't want to spend a lot of money on them. Has anyone ever used the Dolica ND filters? The three pack I saw had .3, .6, and .9ND filters in them. Does anyone know if those numbers are actual stop (i.e., the .3=3 stops, the .9=9 stops).
Are there any other ones (inexpensive) out there that someone can recommend over these? Especially if they aren't really 9 stops.