All tests on manual focus. Smallest focus distance: 110-130 mm from the Raynox. Should suffice. Largest object that could be photographed: 30 mm. Magnifications and maximum object sizes:
1. Focus at infinity
| focal lenght | frame width | magnification |
| 70mm | 30 mm | 0,57x |
| 100mm | 20 mm | 0,8x |
| 150mm | 15 mm | 1,1x |
| 200mm | 10 mm | 1,7x |
| 300mm | 7 mm | 2,4x |
2. Closest focus
| focal lenght | frame width | magnification |
| 70mm | 20 mm | 0,8x |
| 100mm | 15 mm | 1,1x |
| 150mm | 10 mm | 1,7x |
| 200mm | 7 mm | 2,4x |
| 300mm | 5 mm | 3,4x |
DOF at 200-300 is very, very, very small even at f22.
One of the first acceptable photos I took with it (ISO400, cropped):
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