monocular
One-eyed viewing device
Monocular describes vision or optical devices using only one eye.
A monocular is a small telescope for single-eye viewing—essentially half a pair of binoculars: He pulled out a monocular to scan the ridge.
Monocular vision lacks depth perception, which requires two eyes working together.
Lens you look through
- lensLight-focusing curved glass
- prismLight-splitting optical element
- diopterUnit of focal power
- focusConcentrated attention point
magnification · objective · coating · resolution · clarity · reticle · rangefinder · optical
Different prescription per eye
- amblyopiaReduced vision, one eye
- stereopsisBinocular depth vision
- accommodationShelter or housing provided
- sightVisual perception faculty
Instrument magnifying faraway objects
- spyglassPortable magnifying tube
- lorgnetteSpectacles with side grip
- refractorLight-bending optical instrument
- microscopeInstrument for viewing minute objects
viewfinder · theodolite · periscope · sextant · rangefinder · telephoto
Single-socket covering
- spyglassPortable magnifying tube
- captainOne who commands
- shipSeagoing transport vessel
- seaSaltwater body, not ocean
lookout · crow's-nest · horizon · treasure · buccaneer · corsair · swashbuckler · galleon
Information-gathering before action
- spottingPerceiving or identifying visually
- observationAttentive watching or remark
- scoutingObserving to gather information
- tacticalStrategically planned
covert · stakeout · military · hunting · long-range · target · operative · security
Path through wilderness
- backpackStrapped bag worn dorsally
- summitPeak or diplomatic gathering
- wildlifeUndomesticated natural organisms
- scoutingObserving to gather information
vista · overlook · navigation · trekking · mountaineering · daypack · one-handed · lightweight
Observing wild avians recreationally
- spottingPerceiving or identifying visually
- ornithologyScientific study of birds
- fieldworkResearch conducted on location
- speciesFinest taxonomic rank
identification · songbirds · raptors · waterfowl · migration · habitat · twitching · birders
Able to be carried
- lightweightLacking mass or importance
- pocket-sizedSmall enough to carry
- handheldDesigned for palm use
- travel-friendlySuited for journeys
collapsible · miniature · slim · pocketable · convenient · one-handed · EDC · keychain
eyepiece
Lens you look through
focus · magnification · objective · coating · resolution · clarity · reticle · rangefinder · optical · aperture
monovision
Different prescription per eye
- amblyopiaReduced vision, one eye
- stereopsisBinocular depth vision
- accommodationShelter or housing provided
telescope
Instrument magnifying faraway objects
- spyglassPortable magnifying tube
- lorgnetteSpectacles with side grip
- refractorLight-bending optical instrument
microscope · viewfinder · theodolite · periscope · sextant · rangefinder · telephoto
eyepatch
Single-socket covering
sea · lookout · crow's-nest · horizon · treasure · buccaneer · corsair · swashbuckler · galleon · sail
reconnaissance
Information-gathering before action
- spottingPerceiving or identifying visually
- observationAttentive watching or remark
- scoutingObserving to gather information
tactical · covert · stakeout · military · hunting · long-range · target · operative · security · patrol
trail
Path through wilderness
- backpackStrapped bag worn dorsally
- summitPeak or diplomatic gathering
- wildlifeUndomesticated natural organisms
scouting · vista · overlook · navigation · trekking · mountaineering · daypack · one-handed · lightweight · gear
birdwatching
Observing wild avians recreationally
- spottingPerceiving or identifying visually
- ornithologyScientific study of birds
- fieldworkResearch conducted on location
species · identification · songbirds · raptors · waterfowl · migration · habitat · twitching · birders · feathers
portable
Able to be carried
- lightweightLacking mass or importance
- pocket-sizedSmall enough to carry
- handheldDesigned for palm use
travel-friendly · collapsible · miniature · slim · pocketable · convenient · one-handed · EDC · keychain · clip-on
- telescopesrefractor, reflector, Newtonian, Gregorian, space telescope
- mono- wordsmonochrome, monogram, monolith, monorail, monotone
- optical devicestelescope, lens, magnifying glass, microscope, prism
- birding gearfield guide, spotting scope, bird feeder, birdseed, birdhouse
- optical instrumentsmicroscope, telescope, spectroscope, spectrometer, magnifying glass
- vision aidswhite cane, guide dog, magnifying glass, screen reader, braille display
monocularbinocular
Using paired eyes
binoculars · field glasses · stereoscopic · opera glasses · twin-lens
monocularbinocular
Using paired eyes
binocular vision · stereoscopic · stereopsis · depth perception