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I just ordered the same Optotronics 150 today that you linked to. I ordered it precisely because it has the IR coating/filter. Plus I believe that it will be on or above 150mw spec. I do not think that the Rayfoss has the IR filter which is critical because IR restricts light out put, and I do...

If a non IR laser is spec'ed at actual 100mw, would there be any difference compared to one spec'ed 100mw including a 95% IR filter? According to what I read, an IR filter makes a huge difference. As all vendors are in Asia, it's a little hard to call and ask questions.

Found this and helps answer some questions. Genuine Vs Shoddy Still looking for vendor input/recomendations.

Oh, and thanks for the welcome's. Glad to be here. It's great to have folks to consult with about these things. I hope I can contribute to the forum in some way.

I've already ruled out the vendors he mentioned - Thanks Exactly when does someone need to wear glasses. I understood that as long as you are only looking at the beam such as for astronomy, they are not necessary. But if for example you look at the dot on a surface or while burning, than they...

Thanks. I think I've pretty much narrowed it down to buying from one of the 4 vendors I mentioned in my post. Thanks for those comments. I am aware of shiny objects becoming relay points, but rethinking, you're right about possible reflections into other buildings or into the target building...

Hey I'm new on the forum and to lasers and I need some help. I've been spending some time reading as many posts as I thought might help me learn about lasers including the very helpful guide to buying a first GL. I'm trying to make a decent decision to buy my first and maybe my only green laser...