UNCOOLED LONG-WAVE INFRARED LENSES SECRETS

I utilised a Sony FE twelve-24mm f/4 on an a7 II system transformed to 665nm infrared. This is one of my most loved lenses for broad angle with infrared mainly because if performs so very well and handles an extremely wide range. You may get very hot places with apertures more compact than file/8 but with ultra huge lenses similar to this you would