Both the wide angle end and in the middle (80mm) and telephoto strong blurring:
- 18mm: center with luck sharp edge regions (especially right) very blurred
- 80mm: focus excessively sharp edge region (particularly right) very blurred / No Details
- 200mm: contrasting focal point / Total blurred image
All recordings compared with Canon 18-200mm (both at EOS50D). Are worlds apart.
The color accuracy is not given. The colors are rich - but that does not correspond to the original nature.
Even if you do not provide the highest levels of sharpness, this lens is not usable. Perhaps a Monday model. That is why only 1 star (actually 0).