field glasses
Handheld magnifying optics
Field glasses are compact binoculars designed for outdoor use—observing birds, wildlife, sporting events, or distant landscapes.
The term sounds slightly old-fashioned; binoculars is now more common.
He raised his field glasses to watch the hawk circling above the ridge.
Science of illumination
- lensesCurved transparent refractors
- zoomRapid movement or magnification
- prismLight-splitting optical element
- diopterUnit of focal power
focus · eyepiece · objective · resolution · magnifying · aperture · coated · adjustment
Handheld dual-lens magnifier
- birderOne who spots species
- ornithologyScientific study of birds
- warblerSmall melodious bird
- plumageBird's complete feather coat
songbird · raptor · migration · nesting · perching · flyway · species · flock
Wildlife observation journey
- wildlifeUndomesticated natural organisms
- hikingRecreational trail walking
- expeditionOrganized exploratory journey
- campingOutdoor recreational lodging
nature · trail · landscape · scenery · wilderness · trek · hunting · marine
Systematic observation of subjects
- scoutingObserving to gather information
- reconnaissanceInformation-gathering before action
- watchingActively looking at something
- monitoringOngoing observation of something
spying · stakeout · lookout · patrol · vigilance · spotting · scanning · tracking
optics
Science of illumination
- lensesCurved transparent refractors
- zoomRapid movement or magnification
- prismLight-splitting optical element
diopter · focus · eyepiece · objective · resolution · magnifying · aperture · coated · adjustment · power
binoculars
Handheld dual-lens magnifier
- birderOne who spots species
- ornithologyScientific study of birds
- warblerSmall melodious bird
plumage · songbird · raptor · migration · nesting · perching · flyway · species · flock · roosting
safari
Wildlife observation journey
- wildlifeUndomesticated natural organisms
- hikingRecreational trail walking
- expeditionOrganized exploratory journey
camping · nature · trail · landscape · scenery · wilderness · trek · hunting · marine · stadium
surveillance
Systematic observation of subjects
- scoutingObserving to gather information
- reconnaissanceInformation-gathering before action
- watchingActively looking at something
monitoring · spying · stakeout · lookout · patrol · vigilance · spotting · scanning · tracking · viewing
reconnaissance
Information-gathering before action
- artilleryLarge-caliber battlefield weapons
- navalOf maritime warfare
- officerAuthority figure in uniform
rangefinder · trench · command · tactical · infantry · signal · battery · forward observer · spotter · coordinates
- optical devicestelescope, lens, binoculars, microscope, prism
- Civil War gearmusket, rifle, bayonet, canteen, knapsack
- observation devicesbinoculars, telescope, microscope, camera, periscope
- magnifiersloupe, magnifier, hand lens, jeweler's loupe, jewelers loupe
- Military Sensorssensor, early warning radar, infrared sensor, thermal imager, night vision
- lookoutslookout, watchtower, crow's nest, observation post, guard tower
field glassesnaked eye
Vision without optical instruments
telescope · monocular · microscope · spotting scope · spyglass
field glassesmicroscope
Instrument for viewing minute objects
electron microscope · magnifying glass · loupe · reading glasses · jeweler's loupe
field, glass, glasses, fields, battlefield, fielder, fielded, fielding, fieldwork