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size diameter 25.5mm aluminium metal frame ring mounted for camera or optical glass
one piece diameter 34mm and another 49mm fit for camera lens pass from 380nm green filter glass LB12
Square Size 50x50x2mm UV Visible Light Cut 780nm IR Pass Filter Glass HWB780
Diameter 27mm 656nm H-alpha Of Sun Narrow Band Solar Filter Glass Screw Into a 1.25 Eyepiece For Astronomical Telescope Camera
30*4mm Plano Glass 45 Degree 1064nmHR Reflective Lens Quartz JGS1 Mirror For Laser Machine
size diameter 35mm and 2mm thick 365nm uv pass and visible cut filter glass ZWB2 UG1