what is known about line doublers?

[ap0the0sis]

id like to find a software line doubler. im sure there are some out there but when i search i get harware results.

so whats out there?


(i tired searching but got back 70 topics and thousands of pages...) to much to go through

 

[Mr.Kh]

The viewsonic N series seem to be fairly available, so I'm curious if anyone has an N4 mainly (N5/6 too) - and how you like them.