3 ms·
True, also the evenness of the surface is a little off without grinding which also limits the usefulness for optics. I just used it a few times when I needed an
by GravitasFailure 4y ago
True, also the evenness of the surface is a little off without grinding which also limits the usefulness for optics. I just used it a few times when I needed an odd cylinder size that needed to be see through.