B00SLP1OL0 Samyang 35 mm T1.5 VDSLR II Manual Focus Video Lens for Micro Four Thirds Camera

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Fast T1.5 aperture makes this lens great for low light and shallow depth of field
Focus and aperture control rings feature industry standard gearing
Features the latest generation multi-layer anti-reflection ultra multi-coating (UMC) to minimise flare and ghosting
Designed for DSLR Video Shooting
10 elements in 12 groups, including one hybrid aspherical lens