KOLARI new sensor coating to reduce hot spots

[Dr Klaus Schmitt]

which quite a few lenses usually show in IR!

https://kolarivision.com/specifications/anti-reflective-coated-glass-reduce-hotspots-glare/

[Macro_Cosmos]

Quite interesting, I've always suspected the possibility of reducing hotspots with sensor coverglass coatings.

[bobfriedman]

I always thought the hot spots were due to internal baffles that reflected (non absorbing) in the IR.   try viewing a lens that hot spots in the IR using a macro lens to look inside. I am sure you find shiny baffles.

[Dr Klaus Schmitt]

I always thought the hot spots were due to internal baffles that reflected (non absorbing) in the IR.   try viewing a lens that hot spots in the IR using a macro lens to look inside. I am sure you find shiny baffles.

Shiny baffles are one reason, but there is more to that...

[bobfriedman]

Shiny baffles are one reason, but there is more to that...

I am sure there is but I would think they were the dominant scatterer.