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Block additional stray light from entering your 50-500mm f/4.5-6.3 APO DG OS HSM lens with the Sigma Lens Hood Adapter which extends the length of your lens hood, providing additional shading when used with digital cameras with an APS-C size image sensor. The lens hood adapter also provides additional protection to the camera and lens from accidental impact, bumps, and scratching.
* When using the APS-C Hood Adapter HA1030-01 with digital cameras with larger than APS-C size image sensor, vignetting will occur. Please remove the hood adapter if you are using these cameras.