View single post by jk
 Posted: Sun Apr 15th, 2012 09:21
jk



Joined: Mon Apr 2nd, 2012
Location: Carthew, Cornwall, United Kingdom
Posts: 6874
Status: 
Offline
Very neat. I guess the camera is detecting the small changes in light as the blood is pumped and flows through the fingertip.



____________________
Still learning after all these years!
https://nikondslr.uk/gallery_view.php?user=2&folderid=none