Used Leica 44mm Slip On Lens Cap for 50mm f1.4 Summilux? - Green Mountain Camera
Amazon.com: Oumefar 1Set 44mm Optical Glass Lens + 50mm Reflector Collimator Cup + Fixed Bracke LED Reflector Base for 20-100W LED Light(60°) : Electronics
Used Leica 44mm Slip On Lens Cap for 50mm f1.4 Summilux? - Green Mountain Camera
Leupold Alumina 3in-44M Lens Shade | Fits all Leupold VX-5HD, VX-6, VX-6HD and Mark 5HD Riflescopes With 44mm Objective Lenses
Vintage Kodak Camera Kodak Pony IV 44mm Lens 35mm Film - Etsy
1Set 44mm Optical Glass LED Lens 60 Degree + 50mm Reflector Collimator + Fixed Bracket for 20W 30W 50W 100W COB High Power Chip - AliExpress