Interesting background blobs. You will notice the concentric rings caused by Kilfitts attempts to combat spheric aberrations by grinding two different radii .
p.
Hilfreich? Unterstütze den DCC!
aspheric= dual radius
Interesting background blobs. You will notice the concentric rings caused by Kilfitts attempts to combat spheric aberrations by grinding two different radii .
p.
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