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The 2x Hi-Res Tele-Converter is a front-mounting accessory that provides greater telephoto reach without light loss. Available in popular 37mm screw mount, the 2x HR Tele-Converter instantly shifts the focal length range in the telephoto direction. The Century 2x offers front threads for convenient attachment of 62mm filters.
Note: Vignetting will occur in wide angle ranges producing a porthole effect which is common with all tele-converters.