diff -pur a/dcraw.cc b/dcraw.cc
--- a/dcraw.cc	2015-06-16 05:58:38.000000000 +0200
+++ b/dcraw.cc	2017-08-24 10:46:41.000000000 +0200
@@ -9242,7 +9242,7 @@ canon_a5:
     if (make[0] == 'O') {
       i = find_green (12, 32, 1188864, 3576832);
       c = find_green (12, 32, 2383920, 2387016);
-      if (abs(i) < abs(c)) {
+      if (i < c) {
 	SWAP(i,c);
 	load_flags = 24;
       }