What a dive! I use it mainly to create spherical panoramas with my SLR APS-C (1.6). 6 taken to + 30 °, -30 ° 6 outlets, plus a nadir and with a head Nodal Ninja 5. Even HDR catches are superb!
Of very good invoice metal and not plastic like other objectives. Certainly with f / 3.5 at the mini, the low light environments should be avoided.