zoom lenses
Identification code: 300022681
Hierarchy classification:
Alternative term/s
- lenses, parfocal
- lenses, varifocal
- lenses, varifocus
- lenses, zoom
- parfocal lenses
- varifocal lenses
- varifocus lenses
- zoom lens
Anotations
Scope note:
Lenses which are constructed to allow continuously variable focal lengths within a specific range. The effective aperture and focus settings remain unchanged throughout such adjustments.
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