Fiber Optic Collimating Lenses, Filters, and Accesrries

Collimating lenses use a high performance optical element (lens) manufactured using research-grade synthetic fused silica or sapphire that has excellent transmission characteristics and higher operating temperatures than other elements.

Collimating lenses come set to standard effective focal length distances.  However, a means of adjustment is built into the body to allow precision adjustments.