Isosurface
AVS Field Reader -> Isosurface -> Viewer 2D
Read bluntfin.fld. In Isosurface first choose the Isosurface as separate sets option. Then choose Set in the linear range area. From default data there appear all isosurfaces between Min=0.19 and Max=4.98 with Interval=0.2. Then choose Set in the Logarithmic range. For default data there are merely 9 isosurfaces. However,
16:22:38,856 M-isosurface[2] ERROR sNowExceptionHandler.uncaughtException 1649: Uncaught exception occurred in thread Thread[VNM-isosurface[2],6,main] java.lang.StackOverflowError