Term - IF (Internal Focusing) |
| IF (Internal Focusing) | SWPP Photographic Glossary | Wednesday 14th January 2026 |
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IF (Internal Focusing)The system in which only the internal lens group shifts during focusing. IF benefits include focusing without changing the physical length of a lens body, faster focusing, reduced diameter of the focusing ring, closer minimum focusing distance, and aberrations corrected throughout the entire focusing distance range.
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Information provided by: SWPP |