Wide-Angle Lens with Adapter Tube for Canon PowerShot S3is or S5is Wide-Angle Lens with Adapter Tube for Canon PowerShot S3is or S5is Model: CWNW-003 Lens Type: wide-angle VIVITAR Wide-Angle Conversion Lens + Adapter Tube for the Canon PowerShot S3-IS or S5-IS You already have Excellent Telephoto capabilities with the Canon PowerShot S3-IS or S5-IS, now get EXTREME Wide-Angle and MACRO too with the .43x Conversion lens