Zoom creep

Zoom creep is a phenomenon in zoom lenses where the angle of view of the lens changes when gravity is allowed to freely act on it.^[1] If the lens has a zoom ring, holding it when the lens is held upwards or downwards will prevent this change. In lenses with push-pull zoom, creep is prevented by holding the extending part of the lens. Some lenses, such as the Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF]^[2] and Canon EF-S 18-135mm f/3.5-5.6 IS STM,^[3] have a zoom lock to stop the effect.

References

^ "Nikon Support".
^ "SP AF 17-50mm F/2.8 XR di II LD Aspherical [IF]". 3 April 2020.
^ "Canon U.S.A., Inc. | EF-S 18-135mm f/3.5-5.6 IS STM".

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[1] "Nikon Support".

[2] "SP AF 17-50mm F/2.8 XR di II LD Aspherical [IF]". 3 April 2020.

[3] "Canon U.S.A., Inc. | EF-S 18-135mm f/3.5-5.6 IS STM".

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