Symetric Convex Lenses (SCX) SCX lenses have two symmetrical convex surfaces and positive focal length. They are used for condensing, magnifying and to form real or virtual images. Specifications D=Diameter ? 0.25 mm < 40 mm ? 0.5 mm 40 to 100 mm ? 1.0 mm > 100 mm F= Effective Focal Length ?5% CT=Central Thickness ?0.5mm ET=Edge Thickness ?0.5 mm Material : As per customer's requirement Centration : 3 arc min. Surface Quality : Mil-0-13830/80-50 Anti Reflection Coated Qty :