Delete comment from: Ken Shirriff's blog
«The optics are even more amazing»
The optics are particularly amazing as they are unusual, far more interesting than simple “aspherical lenses“ because they use a little known known technique, which is currently used in adjustable-power glasses, one of which I am using as my computer glasses. This is extensively described here:
http://www.wtpoptics.com/ASPEweb.htm
Some more discussions and links:
http://www.sabi.co.uk/blog2/16-one.html?160610#160610
Feb 17, 2022, 5:59:13 PM
Posted to A look inside the chips that powered the landmark Polaroid SX-70 instant camera