10mm Series Telescope Doublet Glued Lens Achromatic Objectives Glass Lens for DIY Binoculars

12f47 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 12mm, Focal length: 47mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
12f50 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 12mm, Focal length: 50mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
13f49 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 13mm (small lens) / 13mm (large lens), Focal length: 49mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
16f32 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 16mm, Focal length: 32mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
16f34 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 16mm, Focal length: 34mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
16f38 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 16mm, Focal length: 38mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
17f35 Cemented Green-Coated Lens Material: K9 optical glass, Diameter: 17mm, Focal length: 35mm, Structure: Doublet achromatic positive lens, Coating: Multi-layer green coating on surface
17f83 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 17mm, Focal length: 83mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
18.5f33 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 18.5mm, Focal length: 33mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
18f26 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 18mm, Focal length: 26mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface
18f36 Cemented Green-Coated Lens Material: ZF13 + ZK9 optical glass, Center thickness: 8.5mm, Diameter: 18mm, Focal length: 36mm, Structure: Doublet achromatic positive lens, Coating: Multi-layer green coating on surface
18f37 Cemented Green-Coated Lens Material: K9 optical glass, Diameter: 18mm, Focal length: 37mm, Structure: Doublet achromatic positive lens, Coating: Multi-layer green coating on surface
19f69 Cemented Blue-Coated Lens Material: K9 optical glass, Diameter: 19mm, Focal length: 69mm, Structure: Doublet achromatic positive lens, Coating: Blue coating on surface