| photographic equipment(noun, technology, view, search) |
| sensing system(noun, watch, search, device, apparatus) |
| sensor(noun, watch, search, device, apparatus) |
| scout(noun, observe, watch, search) |
| search party(noun, person, search, explore) |
| seeker(noun, seek, search, hunt) |
| telescopic sight(noun, device, apparatus, searcher) |
| detector arrangement(noun, watch, apparatus, detect, radar) |
| eye-lens(noun, watch, search, lens, ocular) |
| eye-piece(noun, watch, search, lens, ocular) |
| eye glass(noun, watch, search, lens, ocular) |
| eye lens(noun, watch, search, lens, ocular) |
| eye piece(noun, watch, search, lens, ocular) |
| eyeglass(noun, watch, search, lens, ocular) |
| eyeguard(noun, watch, search, lens, ocular) |
| eyelens(noun, watch, search, lens, ocular) |
| eyepiece(noun, watch, search, lens, ocular) |
| eyepiece lens(noun, watch, search, lens, ocular) |
| field glass(noun, watch, search, lens, ocular) |
| lens(noun, watch, search, ocular) |