I find my lens a bit soft when I am close to the subject (closer than 0.7 meter) and shooting 70 mm at 2.8. It´s a huge difference if I compare it against stoping down to F4. At f4 it´s very sharp.
If I compare f2.8 and f4 at longer distances than 0.7 all images are razorsharp. Can´t see any difference. This issue with the sharpness are only at 70mm. Anyone else who got this on their lens?
I think this is typical for this lens. Mine is a little less sharp close to MFD, but I would not call it "soft" anywhere.
Bodies: 5DSr, 6D, EOS-M
Lenses: 35mm f/2.0 IS, 50mm STM, 300mm f/2.8L II IS, 16-35mm f/4L IS, 24-70mm f/4L IS,24-105mm f/4L IS MkI, 70-200mm f/2.8LIS II 600EX-RT (x3), 1.4xIII and 2xIII extenders