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Just a quick question. Does anyone know if the stock Casio 130/140 lens is coated?
I contacted aixiz and they told me I have the wrong ones. There sending me replacements.
Yeah, I want to know how the proper coating compares. Could you do a total re-test for consistent results, please? I know it's a pain, but temperature effects these diodes a bunch.
It's not purple, it's blue. It's very easy to tell if it's a yellow or blue coating.I was talking with a couple people about AR coatings and here is what they said (paraphrased).
Just because the lens reflects purple does not mean it's coated to only pass red light. Our eyes perceive both short wavelengths and some longer wavelengths as purple.
If someone was looking for 10 to 20 unmounted lenses to use in a single lab laser which need as similar a dia. and F.L. as possible is there a review or source of the options available. As I read it there are acrylic vs. glass as well as single and multiple lens options. The discussions about these coatings suggest that some suppliers are providing lenses with mixed coatings on multiple elements, sometimes missing coatings. If we are not looking for every last mw, but want a good, consistent lens what to do? Won't the stock 130/140 lens collimate the beam as well as these aftermarket lenses if spaced optimally?