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The recent purchases thread


Rochambo

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  • 1 month later...

I bought some near infrared filters (720, 760, 850, and 950nm) for my telephoto camera lens. The top two, I can barely see thru. The light source has to be bright. The bottom two, not a chance with human vision. :P

You can see the drop off in NIR sensitivity in the 950 filter. IR sensitivity in silicon based cameras drops off fast as you get closer to 1100nm. To see beyond that, you'll need a SWIR camera and a very hefty bank account.

1st image: Visible spectrum

2nd image: Near IR

Filters_Vis.jpg

Filters_NIR.jpg

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21 hours ago, Arc Flash said:

ok ok...this....lol!:please:

Not sure what it is, but, yeah cool? :D

 

On 12/13/2018 at 2:57 PM, Tropical Melody said:

Warmer than a baseball cap I'm hoping.

And yes it is! Not half bad must be said. And the peak still good for keeping the low winter sun out of the eyes especially driving.

 

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1 minute ago, Tropical Melody said:

Not sure what it is, but, yeah cool? :D

 

And yes it is! Not half bad must be said. And the peak still good for keeping the low winter sun out of the eyes especially driving.

 

A frag tank for a huge project coming upB)

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