If you don't know about this it will knock your socks off. iPhone users who
upgrade to the new system 10 will find they can go to Settings> General>
Accessibility >Magnifier (ON).

Then, if you click your home button three times in rapid succession, you
get an awesome magnifier capable of reading the tiniest print on the
tiniest electronic components, finding cracks and leaks and such. You can
take a picture of the ultra enlargement and then even magnify that. You can
do it at night because you have a button to turn on the camera light to see
by.

Thought you would want to know.

Jim