On Fri, 06 Nov 2020 11:02:14 +0000, T i m wrote:

Lots on Ebay & Amazon. Different magnifications & cheap enough to experiment
with.

But rather than ending up with a draw full of failed experiments, I
thought it might be more efficient to ask the panel and therefore
potentially narrow it down a bit (and I have, thanks). ;-)

It was *after* being swamped by solutions on the likes of eBay and
Amazon that I asked here. ;-)

Cheers., T i m

I'm interested in these. I have +3.5 and +4 - I got the 4s about 15 years ag
then later wanted another pair and couldn't find 3.5.
Now, a lot on Ebay etc. say "3.5" as the top value, so of no use really, but
is that the value of the strongest lens and can the lenses be stacked to go
higher? None of them seem to say and the stronger ones are all spectacle
type. I'd prefer headband for that much overhang.
--
Peter.
The gods will stay away
whilst religions hold sway