Recommendation's for Filter please

[joanne]

I'm looking to buy a filter for landscape photography. There are so many to choose from and I'm getting baffled
I have been told that a graduated filter will be best, has anyone got any advice what type and make of filter?
Thanks in advance:smile:

 

[oris642]

I use the RF75 series of filters by Lee. Compact size, perfect for micro four thirds.