Samyang 85 mm F1.4 Manual Focus Lens for Pentax: Amazon.co.uk: Electronics & Photo
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Samyang MF 85mm F1.4 Mk2 Lens Review and Specs
DXOMARK - Samyang 85mm F1.4 AS IF UMC Pentax lens review. Reasonably-priced and sharp when stopped down a little, the Samyang 85mm f1.4 AS IF UMC looks like a bargain: http://dxo.io/1OGe9t0
Samyang 85mm f1.4 Aspherical IF Lens Review Fuji X