Unfortunately, I did not become with this lens on my EOS 100D happy. The lens has under test configuration (see instructions Traumflieger) a clear focus front. Bw 18mm and 50mm 5cm from Bw 150 agrees with the focus up to max. 2mm (measurement error). 18-55 kit lens Stm and EFS 40 2.8 Stm on the millimeter exactly. Therefore, my objective goes back, though I could buy it cheap in the Blitz offers for only 499. Other distortions, chrome. Aberration can be removed without problems with div. Programs. I'll say goodbye for now superzooms me by and instead set several objectives. Perhaps the 70-200 f4 L or the Tamron 70-300 VC and a fixed focal length Sigma 30mm F1.4 type which is almost a normal focal length on crop.
