Viltrox 25mm f/1.7: B&H Photo / Amazon Viltrox 28mm f/4.5: B&H Photo / Amazon Viltrox 35mm f/1.7: B&H Photo / Amazon All three firmware updates fix known issues for the Viltrox 25mm f/1.7, 28mm f/4.5, and 35mm f/1.7. Viltrox 25mm f/1.7 Firmware 1.03 Download Here Viltrox 28mm f/4.5 Firmware 1.03 Download Here Viltrox 35mm f/1.7 Firmware 1.03 Download Here Follow Fujiaddict on Facebook, Twitter, Instagram, and YouTube Plus, … Continue reading Viltrox 25mm f/1.7, 28mm f/4.5, and 35mm f/1.7 Firmware Updates Released