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newbie just read http://www.nist.gov/customcf/get_pdf.cfm?pub_id=906138 newbie asks, out of all these recommendations, do all of them come with infrared filters or is there IR leakage risk ?

cool, tk u all.

id say more than 30 sec, unless the 2 people r in good synch: one person locates the object, the other tries to aim the telescope towards the laser quickly. how bigger in diameter are flashlight hosts ?

tk u for ur answer, will look into them. excuse my ignorance, what is the advantage of a 18650 battery ? is it a cheap battery ? how does it compare to AA and AAA ?

id like a recommendation for a green laser that is potent enough but doesn't burn stuff or heat itself much either, and can be pointed to stars clearly in a light polluted night sky. im a noob in lasers and astronomy (where i intend to use it): my goal is to fit it inside this little bugger...