A T-ring converts a DSLR camera body's bayonet mount to a female T-thread, allowing attachment of the camera to a T-Adapter, a telescope field flattener, coma corrector, or other "T" threaded camera accessory. This T-ring, designed to fit Nikon F-mount cameras, features standard M42 (42mm x 0.75) T-threads. Length (thickness) of the T-ring is 8mm. Made of machined aluminum and black anodized.
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