Frequently Asked Questions

The L5 Mounted Rectangular Slit Aperture is made of copper foil, blackened on one side.

The L5 aperture is 0.005mm (5μm) wide and 1mm long.

The tolerance of the L5 aperture size is +/-0.5μm.

The foil dimension of the L5 aperture is 3mm in diameter.

The available mount diameters for the L5 aperture are 12.7mm, 16mm, and 25mm.

The mount for the L5 aperture is made of black anodised aluminium.

Other products in the L series include L2, L10, L25, L50, L100, and L250, each with different aperture sizes.

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