Viltrox 56mm f/1.7:  Amazon / B&H Photo Viltrox released a firmware update for the Viltrox 56mm f/1.7 which you can download here. The update notes are the update notes are below: v1.0.2 major updates: 1. Fix the problem that the lens is out of focus at close range at F1.7 aperture. BUG feedback channels: 1. VILTROX product exchange … Continue reading Viltrox 56mm f/1.7 Firmware 1.0.2 Released