A similar interesting lens is the 5200 mm f/14 that Canon built in the 60s: https://petapixel.com/2010/01/06/ginormous-5200mm-canon-lens-on-ebay/ https://petapi

A similar interesting lens is the 5200 mm f/14 that Canon built in the 60s: https://petapixel.com/2010/01/06/ginormous-5200mm-canon-lens-on-ebay/ https://petapixel.com/2010/01/06/ginormous-5200mm-canon-lens...