Viltrox AF 20mm f/2.8:  B&H Photo / Amazon The Viltrox AF 20mm f/2.8 FE is a great lens for photographers on a budget and you can read the full Optical Limits review here. Below you can find an excerpt from the review: The Viltrox AF 20mm f/2.8 FE is a super affordable ultra-wide lens that is capable … Continue reading OL: Viltrox AF 20mm f/2.8 FE – A Great Budget Option