http://camerapedia.wikia.com/wiki/Radioactive_lenses" onclick="window.open(this.href);return false;
![Shocked :shock:](./images/smilies/icon_eek.gif)
Dat is nog eens wat anders dan loodhoudend glas.
![Very Happy :D](./images/smilies/icon_biggrin.gif)
ModeratorCOLON Global Moderators
Fluoriet is dus niet radioactief.Thorium oxide has a crystalline structural similar to calcium fluoride (fluorite). Like fluorite, its optical properties of high refractivity and low dispersion allows lens designers to minimize chromatic aberration and utilize lenses of lower curvature, which are less expensive to produce.