I was watching BigClive's electronics channel on You Tube and in a recent video he was using this electronic microscope. I thought that it might be handy for sharpening so I bought myself one. It cost about $26 Australian including shipping.
Here it is looking at the micro bevel created using a 5000 grit shapton stone on my Narex Richter chisel.
Clever find, John.
Ken
Where can we buy it?
I found mine on AliExpress. I just searched for hand held digital magnifier.
ALIEXPRESS (https://fr.aliexpress.com/item/1005010271716847.html?aff_fcid=d326eed291724a00b0cc950bc6acf907-1777362139641-01389-_c43ql3OX&tt=CPS_NORMAL&aff_fsk=_c43ql3OX&aff_platform=shareComponent-detail&sk=_c43ql3OX&aff_trace_key=d326eed291724a00b0cc950bc6acf907-1777362139641-01389-_c43ql3OX&terminal_id=a7aa78c01f014c928ec920ea5a61a684&afSmartRedirect=y#nav-review)
I just ordered this one here ;D