Ah, my subjective judgement is considered an objective failure?
Thus "objective failure" means: Your subjective judgement is true, saying: "I'm just too little to reach the required focal length".
Maybe it's as simple as that...
I wish it were. No, it's a camera malfunction, and a new camera will likely be less expensive than a repair.
I think we'd better get back to Cranes, and I don't mean the ones nesting in the neighbor's field.