Amazon.com : Laowa 100mm f/2.8 2X Ultra Macro APO SLR Black Macro Lens – Camera Lenses and Filters (SLR, 12/10, Macro Lens, 0.247 m, Sony E, Full Frame) : Electronics
Laowa 100mm f/2.8 2x Ultra Macro APO review | Digital Camera World
Review: The Laowa 100mm f2.8 2:1 macro lens has a lot going for it