That little red dot - the illuminated reticle - has made riflescopes much easier to use. The technology behind it is staggering. We visit the Zeiss factory in Wetzlar, Germany, to find out how they make them - the finest red dots in the world.

FOr more from Zeiss, go to http://bit.ly/zeisshunt

This item appears on YouTube in Fieldsports Britain, episode 355 http://bit.ly/fieldsportsbritain355

Sign up for our weekly email newsletter http://www.fieldsportschannel.tv/register