Around last x-mas I purchased some lenses and mirrors from this Chinese company ( www.eclaser.cn ). Lenses are made of ZnSe, ZnSe PVD - $ 28,-/ piece and ZnSe CVD - $ 49,-/piece. Honestly saying I don't have any idea what's the difference between PVD / CVD :o , but I've tested both of those and seems to work great even I'm quite lazy to clean them... I don't know the prices in US, but these feels quite cheat ( of course have to add taxes & delivery, but still... ). Mirrors - Molybdenum and Silicon - was $ 19,-/piece.
- Hannu