What 50 mm eyepiece?

["Mario Morales"]

Hi friends,
I have a 6" f/12  Intes Maksutov Cassegrain and I would like to purchase a
2" 50 mm eyepiece to watch DSO with plenty of light. Can you advice me about
a brand to purchase? I like Vixens (my LV 6 mm performs very well) and I'm
looking for an eyepiece not very expensive, say from $ 100 to $ 120 american
dollars, and i would like to know if there´'s something of good quality and
price.
Thank you in advanced
Mario from Spain