The Lamy Vista Transparent/Clear Rollerball Pen. Lamy rollerballs are a good alternative to fountain pens or ballpoint pens. Combine the best of the two classic category, these rollerball pens are as easy to operate as ballpoint pens and they have a beautiful type face to the fountain pen. Lamy vista is designed especially for those who value transparency. One of Lamy's most successful models has been given a transparent body that enables users to see the innards at work.