composite image filters
... that the constant k filter was invented by George Campbell but named by Otto Zobel, the inventor of the m-derived filter – both used in composite image filters?
... that the <a href="./Constant_k_filter" id="mwEw8" rel="mw:WikiLink" title="Constant k filter">constant k filter</a> was invented by <a href="./George_Ashley_Campbell" id="mwExA" rel="mw:WikiLink" title="George Ashley Campbell">George Campbell</a> but named by <a class="mw-redirect" href="./Otto_Zobel" id="mwExE" rel="mw:WikiLink" title="Otto Zobel">Otto Zobel</a>, the inventor of the <a href="./M-derived_filter" id="mwExI" rel="mw:WikiLink" title="M-derived filter">m-derived filter</a> <span id="mwExM" typeof="mw:Entity">–</span> both used in <b id="mwExQ"><a href="./Composite_image_filter" id="mwExU" rel="mw:WikiLink" title="Composite image filter">composite image filters</a></b>?