I finished this a while back... I am totally NOT responsible for making this lens expensive after you read this :)

Vivitar 35-105 3.5 LENS TEST on Vimeo

and my written write up here

Is the 1976 Vintage Vivitar 35-105 3.5 a Mini Primo ? UPDATED (http://www.steveoakley.net/template_permalink.asp?id=115)