(But of course it does not affect the photos.). I will provide courteous and responsive service. I will look it for you. It has no tiny fungus. Optical system.
Sigma 24-105mm F4 DG ART Lens for Sigma SD Quattro (Renewed)
Sigma 24-105mm F4 DG HSM Lens for Sigma
Sigma 635306 24 - 105 mm F4 DG HSM Lens for Nikon, Black
Sigma 17mm F4.0 DG DN lens for Sony E Mount
Sigma 205954 12-24 mm F4 DG HSM Art Canon Mount Lens - Black
Sigma 17 mm F4 DG DN for L-Mount
