how can one make sharper images using mental ray?

[lazerus8102]

why is mental ray so much more blurry then the scanline render?
is there a way to fix this? maby an antialiasing option?

for example when I render my scene using Mental Ray small detials in the mesh become lost. I have tryed increasing the rays and it makes no noticable diffrence.

[noyb]

In the renderer tab, under sampling quality, you can increase the samples per pixel.