There is an Ebay store from the GTA that sells Smith IO goggles. Most of them come with the Ignitor Lens plus an extra lens. Here are a couple examples: Ignitor Lens + Sensor Mirror Ignitor Lens + Green Sol-X Ignitor Lens + Red Sol-X Given that they all come with the Ignitor Lens, what is a good 2nd lens that I should look for that would allow me to change between the two to account for the majority of boarding conditions (bright sunny, cloudy, snowing, night, etc)?

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Smith IO Lens Question