Field glasses were used to magnify the user's vision over great distances. They were extremely popular among sailors on the Great Sea, allowing them to spot pirates long before the pirates even knew they were there. A field glass typically at least doubled the distance vision of any scout or lookout.
- ↑ 1.0 1.1 1.2 Mike Mearls, Jeremy Crawford (2014). Player's Handbook 5th edition. (Wizards of the Coast), pp. 150,153. ISBN 978-0-7869-6560-1.
- ↑ 2.0 2.1 2.2 Jeff Grubb, Julia Martin, Steven E. Schend et al (1992). Aurora's Whole Realms Catalogue. (TSR, Inc), p. 8. ISBN 0-5607-6327-2.
- ↑ 3.0 3.1 3.2 3.3 Tom Prusa (1993). The Shining South. (TSR, Inc), p. 60. ISBN 1-56076-595-X.