--- ray/src/px/ximage.c	1990/11/07 13:10:39	1.27
+++ ray/src/px/ximage.c	1991/03/18 09:35:04	1.28
@@ -373,7 +373,7 @@ XKeyEvent  *ekey;
 			sprintf(buf, "%.3f", intens(cval)/exposure);
 			break;
 		case 'l':				/* luminance */
-			sprintf(buf, "%.0fn", bright(cval)*683.0/exposure);
+			sprintf(buf, "%.0fn", luminance(cval)/exposure);
 			break;
 		case 'c':				/* color */
 			comp = pow(2.0, (double)scale);