EF 17-40 f/4L USM
ACCESSORIES
Magnification with Extension Tube EF 12: 0.83x - 0.32x
Magnification with Extension Tube EF 25: 1.02x - 0.40x (compatible at 40mm setting only)
Lens Hood: EW-83E
Lens Cap: E-77U
Hard Case / Lens Case:
Lens Pouch / Soft Case: LP1319
Gelatin Filter Holder III (Hood III)*: Not compatible
Gelatin Filter Holder IV (Hood IV)*: (0)

*Maximum number of Hood III / IV attachable. In the case of zoom lenses, the maximum number applies to the shortest focal length.
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