https://www.youtube.com/watch?v=h_WzS50B9jw
https://tetenal.com/en/
I found it on Nico's Photo Show, youtube.
Then I had a look at the Tetenal site.
It's an old idea revisited.
Hopefully some one will come up with a practical review soon.
Cheers.
Have a look at 7mins. 30 seconds on Nico's video.
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It will all be over by Christmas.
Last edited by Nat Polton; 15th September 2021 at 08:04 PM.
Reason: Extra info...
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