The main limitations are restricted fields of regard and sensitivity to sunlight or other heat sources.
The M60B's advantage over pintle-mounted variants was that it had a wider and much less restricted field of fire.
The British killed three or four and left the somewhat restricted field victorious.
The antiquarian sense of a person, a civic community, an entire people always has a very highly restricted field of vision.
Another reason is the restricted field of vision imposed by laparoscopes, even those with wider angle lenses.
Although rarely hitting the headlines, the Council continued to work to achieve integration in restricted and less controversial fields.
Block 2 suffered from restricted fields of fire to the west and southwest, which were covered only by an automatic rifle cloche.
Suppressing a curse, he tried to deal with the pain as a pair of boots came into his restricted field of vision.
The real trouble is that the more restricted field causes problems inasmuch as the binoculars have to be really steadily held.
The scientist, we are told, is an expert only in one restricted field: why should his opinions be of value in any other?