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A mechanical hinge system is made to last through thousands of openings and closings
Item model number : 80808618
Note: This tool is NOT suitable for steel wire and hard drawn copper conductors
it meets ASTM D178-88 Type 2 standards
E-47-718 30mm Dia. x 150mm FL, VIS 0° Coated, Achromatic Lens jacket-size_250-m A mechanical hinge system isE 47718 30mm Dia. x 150mm FL, VIS 0 Coated, Achromatic Lens Product VIS 0 Coating Curve Product ISO Product Drawing Diameter (mm): 30. 00 +0. 0 0. 025 Effective Focal Length EFL (mm): 150. 00 Focal Length Tolerance (%): 2 Back Focal Length BFL (mm): 144. 63 Focal Length Specification Wavelength (nm): 587. 6 Clear Aperture CA (mm): 29. 00 Centering (arcmin): <1 Center Thickness CT 1 (mm): 8. 10 Center Thickness CT 2 (mm): 2. 60 Center Thickness
