Vikings made their aspheric lenses to burn wounds by sunlight.
Their quality analysed by Rodentock - Germany and they said that these lenses are at equivalent quality with late 1950s products.
I want to make my photograph machine lenses.
How can I make my lenses with same quality and poor technology ?
Mustafa Umut Sarac
You would almost certainly have to Diamond Turn these. I regularly make these types of lenses in optical grade acrylic, polycarbonate and high index polymers such as MR7.
Here's some I made earlier.
What machine are you using please?
The lenses they made were conics which had surprisingly little spherical abberation, which is pretty advanced considering what they had to make them with. It would have taken a long, long time to make this conventionaly (months,).
Mind you, there does exist a crystal lens from about 1000BC (I'll remember where from in a bit). The viking lenses were dated around 11th cenury AD at most. Lenses have been about for a long time
Last edited by ImanCarrot; 06-19-2008 at 09:27 AM.
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