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Thread: Green laser

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    jenniferchristine's Avatar
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    Default Green laser



    I don't remember if I've mentioned this before, but I've found that firing my laser into the eyepiece hole immediately allows me to see where the scope is pointing - which is absolutely amazing if you can't angle your head to look into the finder or had to remove it to fit the camera gear.
    It gives a clear beam that can be tracked across to the target on a Dob and can aid in alignments for a SCT.

    Give it a try and let me know if you find it easier -
    Hint - Making a mount out of a 35mm film can will help it align easier - it will only shine a beam when it is aligned with the optics
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  2. The Following 4 Users Say Thank You to jenniferchristine For This Useful Post:

    green12 (04-03-2013),Nikon Shooter (11-20-2015),peteandoreen1 (04-03-2013),tkeles (04-03-2013)

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    Default Re: Green laser

    Hi Jennifer c. Sounds like a good idea. Thanks for mentioning.

    larry in Minnesota

    Oh, With or without the eyepice?
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    Default Re: Green laser

    I like it! It would be the perfect thing for those nights when my first alignment star is way off out of the FOV.

    Just for fun, I've tried shining a bright LED flashlight into the eyepiece hole. The result was a searchlight that would probably pick out high-flying airliners! Don't try this at star parties or if you plan to use your night vision afterwards.
    olddogg60 and pch like this.

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    Default Re: Green laser

    Yes the searchlight effect is very good for terrestrial too - I picked out a bunch of guys on a pickup when I was camping one night - looked really cool as they were searchlighting (hunting for roos)- my 3.6volt LED light lit them up like a christmas tree from about 400 yards. And their 12volt 5,000,000 candela light wouldn't reach me properly!

    The green laser comes out still laser slim and goes out 10,000 feet easy

    No eyepiece - it's too hard to align though it will work with one in
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    Default Re: Green laser

    Quote Originally Posted by KeithBC View Post
    I like it! It would be the perfect thing for those nights when my first alignment star is way off out of the FOV.

    Just for fun, I've tried shining a bright LED flashlight into the eyepiece hole. The result was a searchlight that would probably pick out high-flying airliners! Don't try this at star parties or if you plan to use your night vision afterwards.
    Thats basically all a WWII searchlight was, but on steroids.
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    Default Re: Green laser

    Hey jenniferchristine, great suggestion.

    Just tried the green laser pointer (GLP) through the OTA experiment and it worked better than I would have imagined. I would call this the "reverse" use of the GLP. I have posted about using it for an initial alignment on this thread.

    Telrad

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    Default Re: Green laser

    Quote Originally Posted by jenniferchristine View Post
    I don't remember if I've mentioned this before, but I've found that firing my laser into the eyepiece hole immediately allows me to see where the scope is pointing
    You did mention this before
    I think it was in a thread about red dot finders / finder scopes but I cannot find the specific thread /post.

    But it has me puzzled how this would work for a Newtonian:
    When properly collimated your laser would hit the center of the primary mirror and most of the light should bounce back onto the secondary and back into the EP holder.
    With the laser beam being very narrow, how would any light go past the secondary? Let alone enough light to act as a pointer?
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    Default Re: Green laser

    Thank's for the tip jen!!!!!!!

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    Default Re: Green laser

    Good tip for the guys (and Gals) who do not just go out and buy a mount to mount their laser on the scope itself as I have doen on all of my scopes...

    Bob G ...
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    Default Re: Green laser

    Great tip,
    I don┤t have a GLP, a question, here in Chile they sell green laser pointers of all power ranges from 5mW to 500mW, and may be more.
    Which is better for astronomy.

    Regards

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