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This is a sheet of flexible plastic that is a fresnel lens. It magnifies just like a 'normal' lens but is large and light. It also has a frame of PVC plastic, though I am not sure why: it does at any rate make it easier to pick up off the table if you put it down that a frameless one would. It seems sturdy. I bought it to magnify newspaper print when reading for our local talking newspaper. We had previously tried an illuminated lens in a kind of housing that you were supposed to rest on the book or article and move around (it not being large enough to cover the whole sheet). This was unsatisfactory, a) because of needing to move it while speaking into the microphone and b) because it would slide down the tilted lecterns we use. So the magnifying sheet was our second experiment. It failed for two reasons. 1) When the sheet is lying directly on the copy, there is no magnification. It has to be lifted up a few cm above the paper, which without any frame with legs, is a two-handed job. It was hard to hold flat, so the lines of text would bend as the sheet did, and there were also some colour fringes. 2) It is strongly static and the pieces of newsprint get 'sucked' up to it, so reading and moving become impossible. We did try to ground it to dissipate the static charge, but it didn't help. It might be better with thicker pages, as in a book, but definitely a no-go with light paper. So it is what it is -- a good quality fresnel lens, but not suitable for this particular application.Read full review
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These are simply a waste of time! If you place the panel on top of the document to be read it does not magnify at all and if you space it off the document then because it is made of a plastic sheet it just bends and completely distorts the image to be unreadable. Just don't bother with these.
Verified purchase: Yes | Condition: New
excellnt
Verified purchase: Yes | Condition: New