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A comment on 3D Printed Camera. Parent comment

Re:3D Printed Camera by kazinator on Friday September 09, 2016 @07:04PM (#12466653)
But those remarks are just the lens. The lens came out out the 3D printer with a frosty surface. Of course that needs polishing. No 3D printer is going to crank out working optics.

What is surprising here is that the object has the internal clarity, so that all it needs is a surface polish. I imagine it must be relatively free of voids and inclusions.

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Re:3D Printed Camera by ptero on Friday September 09, 2016 @09:10PM (#12467150)
This was a big surprise for me as well. OK, he used a different printer, but the fact that the 3D-printed lens seems optically OK is very impressive.
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Re:3D Printed Camera by newman8r on Saturday September 10, 2016 @01:20AM (#12467821)
I have used 3d printed molds to help me create lenses, but the idea of actually printing a lens is pretty gnarly. I think it definitely qualifies as 3d printing - most models require some touchups after printing from consumer printers anyway.
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Re:3D Printed Camera by mary_fortran on Friday September 09, 2016 @08:42PM (#12467077)
Actually, there are a number of companies making printers that can print high-quality optics. For example LuxExcel: https://www.luxexcel.com/
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Re:3D Printed Camera by Nanite on Saturday September 10, 2016 @04:44AM (#12468330)
He is using an SLA based printer, assuming the resin is bubble free, there should be practically no inclusions in the printed objects.
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