Thread: Erecting prism woes
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Old 28-01-2019, 05:45 AM
Ukastronomer (Jeremy)
Feel free to edit my imag

Ukastronomer is offline 		 
Join Date: Jan 2019
Location: Llandysul, WALES, UK
Posts: 1,381
So what is the point of the diagonal if they don't work,

thanks for the link
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