Difference between revisions of "Focus shift"
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''Focus shift'' is a fault of mainly [[fast lens]]es, i.e. those fast lenses with spherical abberation, see [[lens#Lens_fault_corrections|lens fault corrections]]. | ''Focus shift'' is a fault of mainly [[fast lens]]es, i.e. those fast lenses with spherical abberation, see [[lens#Lens_fault_corrections|lens fault corrections]]. | ||
| − | Focus shift means that the focusing of such lenses changes by changing aperture., | + | Focus shift means that the focusing of such lenses changes by changing aperture., thus making open-aperture focusing with [[SLR]] impossible for exposures at reduced aperture. Focusing must be don at the reduced aperture. |
==Links== | ==Links== | ||
Revision as of 14:47, 3 December 2013
Focus shift is a fault of mainly fast lenses, i.e. those fast lenses with spherical abberation, see lens fault corrections.
Focus shift means that the focusing of such lenses changes by changing aperture., thus making open-aperture focusing with SLR impossible for exposures at reduced aperture. Focusing must be don at the reduced aperture.
Links
- focus shift on photographylife.co [1]
Glossary Terms
