Hello pros, I was on set few days ago on a feature film, I was called on impromptu and when I requested to do a gear check but unfortunately I was told that the gears has not been confirmed yet, until around 8 PM a night to our flight to film destinated location, which was a very remote area, so I was called only to confirm the gears and there is no room for through checking, so I was only given an opportunity to confirm what's on the list and what rental company is providing. After the confirmation we flew to location the following morning, and I had these set of lens (11-16mm, 24mm, 50mm and 85mm) Only to discover that 24mm won't focus at some actual range. Especially at distance between 15ft upward so for me to have an object 15ft in focus, I had to pull between 30ft to 80ft, before I could have the object in focus, I removed it from camera and put it back again I recalibrated it several times but all to no avail. I even had to use depth of field calculator using different T. Stop, but the result I keep getting never accurate with the results I'm getting from the lens. Does that mean the lens is damaged? Although I managed to used it though, I will just like hear different opinions from anyone who might have experienced it before and how did you deal with such situations.