[JA]

Hi folks,

I'm looking for a Concave or BiConcave lens in glass / optical glass... of more than 100mm in diameter, perhaps something in the 110/120 to 150mm range would be great or anything close please advise others too.-300 to -400mm focal length range (but interested in anything at this point). With or without coating. If you have one you'd like to offload please PM or if you have a link to a suggestion where I can get one that would also be great.

I've tried Surplus Shed and no luck. eBay has them at exactly 100mm, but unfortunately I need slightly larger.

Any help appreciated. Thanks in advance.

Best
JA