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    Guide for changing lens?

    Hi all! I have been searching and browsing through LPF, but I haven't seen a single tutorial thread talking about how to change lens in the laser pointer. (For instance, changing from G7 lens go G2 lens and vice versa). I understand that this may be too easy to even write about, but I am pretty...
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    Question abut 3X BE and G2 / G7 lens

    Hi all! I understand that G2 lens has about twice the divergence of G7 lens, and that 3X BE will make the divergence 3x less. My question is, if a laser is equipped with G2 lens and 3X BE, will the divergence be the same or less than the divergence of only using G7 lens? I really appreciate...




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