Quote:
Originally Posted by Papa Zero Three
Take a look at Liquid Eyewear's Hellfire model. Not only do they do Rx, they do transitions that are also ANSI rated. Call and ask them about them as they are a military specific model and don't show up on the website. Something to keep in mind is that there isn't a ANSI rated transition lens out there thats gonna go from dark to light the moment you walk into a dark room, they all take varying amounts of time to lighten despite what some marketing may lead you to believe. Also keep in mind that any transition lens that also includes an in frame Rx is gonna cost more than your average sunglasses. With that said, I think you will be hard pressed to find a better and more durable pair of Rx sunglasses that are 100% made in the USA and come with a unconditional warranty.
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I wear Liquid "Gaskets/w RX Inserts" for jumping (Sport Type) and they are GREAT. I did have a problem on a sunrise load a few months ago. As we climbed to altitude, it got brighter and brighter. The Transition Lenses kept up with the ascent rate, but when we left the aircraft the rate of descent was way faster than the lenses could adjust to. Basically I went from glaring sunlight rapidly into darkness!! After opening, everything was OK until it came down to landing. I had ZERO depth of field because the lenses were still so dark and I flaired really high and just sank in!! A friend that I jumped with videoed my landing and you can hear crickets in the audio, it was that dark still!!
Transitions are OK for a natural sunrise or set, but they are really too slow for anything else!!
Later
Martin