Hot reflector

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It doesnt get hot. A filter that absorbs would.

I held it with steel tongues over a candle yesterday for quite a while. I had my finger on the other side very close <5mm and i could hardly feel any heat. After i took it off i fealt the edges and i could hold it.

Unfortunately its a bit reflective in the visible band which is why it seems to darken anything you look at through it.
 
That sounds better than mine. How strong does it reflect visible if at all? I can reflect on to the wall when i hold it to a light.

With this one looking through is the colour of watered down 3:1 tea. When i tilt it goes more reddish then greenish at high angles. ???

Where did you get it? mine is the 55x50mm hot mirror from surplus shed.
 
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