</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (tschmid @ May 7 2003, 12:30 PM)</td></tr><tr><td id='QUOTE'> A Zeiss S-Tessar from the 60&#39;s (a "low-end" el-lens from Zeiss that still outperforms some modern ones), e.g., passes UV light seamless and can still be focused sufficiently exact with visible light.</td></tr></table><span class='postcolor'>
Hmm... interesting. What material is used for the elements of this lens?