Why You Don’t Put a Cheap Filter on an Expensive Lens
I recently took my Sony A7 III and a rented $2,500 Sony FE 100-400mm f/4.5-5.6 GM OSS lens to the 2018 Montreal GP. A friend of mine had recommended that I use a polarizer. I remembered that I had a pack of 77mm Vivitar Series 1 filters that came with my 24-105mm, so I threw that onto the 100-400mm and started shooting, completely zoomed at 400mm.