I have a M645 1000S with:

- 55/2.8 very good (I'll change it with 45/2.8)
- 80/2.8 I didn't use a lot(I want change it with 110/3.5 or 120/4 APO)
- 210/4 very excellent

Next lenses:
- fisheye
- 145/4 soft focus
- 50/4 shift