Hello Listers, I've had an optacon for a number of years, but use it not as often as I'd like as I never learned completely how to use it properly. However, all this talk about CRT lenses has me curious about using it for working on the computer when the screen reader crashes or when Windows 7 crashes, which seems to be extremely often of late on my new computer. I don't think the lens that I have is a CRT lens, but I don't know, it just came with the used Optacon I purchased. How can one tell if it is a CRT lens? Also does any one out there have a CRT lens for sale? Many thanks in advance, Carrie Green to view the list archives, go to: www.freelists.org/archives/optacon-l To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.