Just acquired a new 100-400mm IS II. Have used original for several years. Not much opportunity for Bird Photography in the last couple of days but have been trying the lens out on general stuff. It is very good indeed. Just pointed it at the moon last evening - this is a 100% crop. I am amazed at the detail in the craters. I think Canon have a winner here for all those of us who cannot even think about the £5k and upwards lenses.
1/640, 5.6, ISO 1600
1/640, 5.6, ISO 1600