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Optical glass density tolerances

ATM DIY Lens Making Optics Refractor
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26 replies to this topic

#26 gitane71

gitane71

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Posted 20 March 2025 - 09:21 AM

Hi David,
Yes, this was Really disappointing ! That the glass is Not what I thought it was was difficult at first, but it was more disappointing that the project i wanted to do was not going to happen.
But, this kind of surprise or 'accident' is certainly not as bad as other possibilities. What I have learned through this might make some other glass useful in ways I hadn't expected. There is more work to do.
The blanks for sale that you mention would be a real 'stretch' for me these days, and as things are now, I still have more glass that I very much want to get to.
The issue now, really, is time. 'Retirement' is not nearly as 'calm' as I expected and if I am short on cash, I am rich in things to do. I am happy with some scopes I have and what I've so far learned, but am itching to grind some more, try some ( for me) new things.
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#27 gitane71

gitane71

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Posted 20 March 2025 - 09:51 AM

And, again, David,

  Thank you Very much for selling me glass that wasn't just 'good'  

but allowed me an introduction into all this.  It meant much more to 

me than just an 'achromat'.  I know I am not as far along as most here

but for me, it was a big deal, and I Greatly appreciate your help

and encouragement !!  


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