Protect the AUREUS PRIME 50mm T1.4 Cinema Lens with this durable Lens Cap from NiSi. Whether during transport or storage, the cap's premium aluminum construction and interior foam lining shield against dust, scratches, and minor impacts, keeping the lens safe in challenging environments. The cap's glow-in-the-dark focal length label makes it easily identifiable in low-light scenarios, ensuring efficient lens swaps during shoots at nighttime locations or dimly lit studios.