Lensrentals and the mysterious case of the Sony FE 70-200mm F2.8 GM

One lens' bad fortune is our gain: the Sony FE 70-200mm F2.8 GM's optical test resultshad been puzzling the team at Lensrentals, and when a customer dropped one recently a teardown was in order.The teardown took a total of six hours - twice the usual amount of time required - and along the way they found a lot of solidly constructed pieces, a mysterious component they dubbed the 'Southern Fairy Tale Ring,'and a great deal of silicone glue. This article details the first part of the teardown, sho...