The MH-2P Fixed Position Lens Mount securely holds 0.75 in. (19.1 mm) optics and is ideal for use with post systems as well as our MRL Series mini rails and MT Series compact linear stages. When combined with MLH Series lens holders, smaller diameter transmissive optics such as lenses, filters, and polarizers can be integrated into your optical system. The MH-2P is designed for direct attachment to MCF rail carriers with an adaptor washer, and using one half of an MT-AB2 bracket as an adaptor plate, on MT Series linear stages. The MH-2P accommodates 0.75 in. (19.1 mm) optics directly or 0.5 in. (12.7 mm) optics using an A-75-50 adaptor.