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View Poll Results: interested in a beam expander?
interested, 100$ is fine! 3 11.54%
interested, more than 100$ too! 2 7.69%
interested, for less than 100$.. 19 73.08%
what? no, thanks.. 2 7.69%
Voters: 26. You may not vote on this poll

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Old 10-19-2009, 05:32 AM #17
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Default Re: feeler: (diy) beam expander?

Ok, The exact diameters of the monocular lenses are 18mm and 12.7 mm, The smallest -FL I can find for a 12.7 is -15 and the largest FL of a 18mm is +72.

I may have to contact jayrob (or do myself) to make a custom spacer to convert a 6mm lens to fit a 12.7mm set-up, this way I can use the smaller 6mm/-6 lens to make a 12x expander that will work just fine with a <1.5mm beam diameter. Other wise it would require that I use two 12.7 mm lenses in order to get to 12x expansions.


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Old 10-19-2009, 06:00 AM #18
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Default Re: feeler: (diy) beam expander?

So krutz, you got any plans in the works for a DIY beam expander or did you give up?
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Old 10-19-2009, 11:07 AM #19
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Default Re: feeler: (diy) beam expander?

i dont have the machines nor knowledge to build a housing myself. if enough people are interested and someone offers to build them, i would try and design a housing and look for optics online, though. i would heavily rely on your peoples help, however ;-)
would i try it myself, it would be some lenses glued into cardboard tubes or the like.. ;-)
(perhaps plastic tubes wouldnt be the worst, better than nothing)

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