</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (docholliday @ Apr 11 2003, 12:11 PM)</td></tr><tr><td id='QUOTE'>Hell, just put an APO enlargin lens on the &#39;larger and focus the IR, UV, etc. It&#39;s like shooting with the Zeiss Superachromat lenses, it adds to the print&#33;</td></tr></table><span class='postcolor'>
Doc,

you might be right with the Zeiss Superachromat (and if ultimate sharpness adds to the print - which is not always the case), but there is no one available as enlarger lens. None of the EL-APO-lenses (except perhaps the &#036;4k APO EL-Nikkor - but I doubt) is corrected from IR to UV. And since IR is useless for printing purposes, filtration makes a lot of sense.