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-   -   EFIS (https://vansairforce.net/community/showthread.php?t=147060)

DaleB 02-26-2017 09:02 AM

I used to be very nearsighted, and had LASIK back in 2003 or so. Now I'm back to wearing glasses while indoors. I've found that my polarized sunglasses are OK for the displays in the cockpit, in that they aren't cross polarized. However, my vision at that distance is just barely adequate to read the display comfortably. The tiny amount of disruption from the cheapie plastic lenses is just enough that I don't use them.

I have some A-O aviators that I bought with non-polarized glass lenses. They work fine, but they're too heavy. After wearing Coke bottles for years, I got spoiled quickly not needing half a pound of glass on my face. I switched to plastic, and they're just OK but not great. And now they're scratched, so I've been flying with just my non-tinted prescription glasses and a hat. My to-do list for this year includes buying a pair of prescription glasses with non-polarized lenses, possibly gradient.

PilotjohnS 02-26-2017 10:49 AM

My experience
 
All my life i used glass photogrey glasses. This last pair i was talked into plastic lenses with self darking. Bad choice for me. The plastic is not as clear; seems to have more color dispersion. Also the plastic lens make it hard to see my camera visual back in sunlight; but It is Ok in doors. Something about the plastic lenses. I am going back to glass on my next pair. Ymmv

rv7charlie 02-26-2017 11:25 AM

Thread name??
 
Since this thread isn't about EFIS's, how about re-titling it? (The same polarization issues happen with any LCD display that has a polarizing filter: GPS's, tablets, cell phones, etc can all be affected.

BTW, remember that many photogray lenses won't darken inside a canopy if it has some UV blocking built in.


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