NGC 3489: large‐scale (a) and medium‐scale R‐band isophotes (c); ellipse fits (b, WIYN R and WFPC2 F814W [red]); B−R color map (d, ﹩w=5﹩, color range = 0.57 mag); ﹩\sigma =40﹩ unsharp mask of WIYN R‐band image showing the outer ring, dust lanes, and the bar (e); HST F555W−F814W color map (f, ﹩w=5﹩, color range = 0.80 mag) showing the nuclear dust ring and blue interior.