Sigma Teleconverter TC-2001 Brand_Feiyu-Tech a new Aspherical Extra-Low Dispersion

a new Aspherical Extra-Low Dispersion (ASP/ED) element is paired with traditional AS

specialised tools

Lens construction

built-in DSP (Digital Signal Processor) blocks that achieve quicker and more precise AF performance

and achieve new levels of sharpness and clarity

Sigma Teleconverter TC-2001 Brand_Feiyu-Tech a new Aspherical Extra-Low DispersionEquipped with 2 SLD (Special Low Dispersion) glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability. Created exclusively for the Global Vision lenses, these teleconverters ensure the utmost in compatibility, even for large diameter lenses. With effective AF at F8 and 2x the reach, get the most out of your Sigma lens. Usable Lenses and Combinations