I purchased the V39 but it did not scan my graded cards well at all, as Oz mentioned it is a CIS lens scanner which takes off-focus scans of graded cards. I noted the differences in the scanning quality here: www.elitefourum.com/t/cis-vs-ccd-scanner-lens-warning-info/13730/1
I returned my V39 and purchased a V37 which has been awesome for me.