![Quintet – boldly fly your starship through the galaxy with your friends [Freeware]](http://www.redferret.net/wp-content/uploads/2013/05/quintet3-270x190.jpg)
This PD Self Test service is a free method of calculating the exact distance between your pupils. It’s used for measuring the width of eye glasses accurately so you get to see correctly through the lens. With the rise of online eyeglasses retailers, this sort of thing is very useful indeed. You can either upload a full face image from your computer, or use a webcam to take a snap, then grab the results by following the instructions.
About the Author:
Nigel is the managing editor of the Red Ferret, as well as a freelance columnist for the Sunday Times newspaper in London. Loves tech and fancies himself as a bit of a futurist, but then don't we all?
Nigel – who has written 5153 posts on The Red Ferret Journal.
![buycott3 150x150 Buycott finally theres a guilt free way to shop [Freeware]](http://www.redferret.net/wp-content/uploads/2013/05/buycott3-150x150.jpg "Buycott - finally there's a guilt free way to shop [Freeware]")
