On Feb 13, 3:38*pm, Tony wrote:

get non-polarized sunglasses?

Probably the best option. Polarized sunglasses have other problems,
sometimes creating dark zones in Perspex canopies. As far as I know,
there is no standard for the polarization of LCD-screens. You have to
turn your head one way for one instrument, the other way for the
other...

Good quality non polarized sunglasses are better for our purpose.
Something like Serengeti, Skylet etc.