One of my friends is grinding a 16" f/4 mirror out of a WWII-era porthole from the USS Oriskany
Posted Nov 2, 2022, 11:17 PM UTC
1528
Awesome! 16” f/4 is a great size!
4
Maybe not the best glass choice but certainly coolest.
2
It was $100, and it’s inch thick plate. You’d be hard pressed to find better for 10x that
6
I thought your friend was trying to have a mustache
1
No residual strain? I feel like that would be a pain to figure
0
No
1
How do you come by such a historic piece of glass?
eBay
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