Thread: Beam of light shown traveling from mirror to mirror
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Old August 3rd 20, 04:27 PM posted to rec.photo.digital
Alan Browne[_2_]
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Default Beam of light shown traveling from mirror to mirror
On 2020-08-03 09:19, Bud Spencer wrote:

Have very nice and productive day! Both of you!

Your misunderstanding of fundamentals is blatant.