UNCOOLED LWIR LENSES - AN OVERVIEW

I applied a Sony FE 12-24mm file/4 on an a7 II overall body transformed to 665nm infrared. This is one of my favorite lenses for wide angle with infrared mainly because if performs so nicely and covers an ultra wide range. You may get hot places with apertures smaller than file/eight but with ultra extensive lenses such as this you wouldn’t want