It's for a canon 18-135mm lens.

Any suggestions? I'm definitely on a budget.

Buying shit filters will result in getting shitty outcome.

Filters only protect lens nothing else it is used for.

You fool. Filters can do a lot of very useful things. That being said, most of those things can now be done in post op.



@OP

Save money, spend the money on a more expensive one.

this

Can somebody just post some damn filters? Jesus.

i use Hoya, great quality



not true
ND filters are very useful = decrease light so you are able to use slow shutter speeds in bright daylight, great for streams / waterfalls etc
Polarizing reduces reflections and improves colours

http://www.bhphotovideo.com/c/product/58714-REG/Tiffen_67ND9_67mm_Neutral_Density_ND.html

how about this one?

Do you guys go .6 or .9 typically? Say I was shooting a fountain and I wanted to blur it with a 1/2 second shutter or so.

tiffen are good

depnds on how many stops you will need to reduce by
ND 8 (0.9) is usually a good choice

ND2 0.3 = -1 f-Stop
ND4 0.6 = -2 f-Stop
ND8 0.9 = -3 f-Stop
ND16 1.2 = -4 f-Stop

http://www.bhphotovideo.com/c/product/57840-REG/Tiffen_67CGND6_67mm_Graduated_Neutral_Density.html

Is it worth spending more to get a graduated one like that one?