Sigma TC-1411 1.4X Teleconverter Mount:L-Mount and this is a perfect

and this is a perfect spare or genuine replacement cable

Please ensure that it is screwed and fixed tightly

please do not open the Battery Cover or Card Cover

Minimized aberrations

The SIGMA TELE CONVERTER TC-1411 is designed exclusively for the use with SIGMA L-Mount lenses

Sigma TC-1411 1.4X Teleconverter Mount:L-Mount and this is a perfectTeleconverters designed exclusively for L Mount lenses The SIGMA TELE CONVERTER TC 1411 is designed exclusively for the use with SIGMA L Mount lenses. Mounted between a lens and a camera body, the TC 1411 magnifies the focal length of the camera by 1. 4x. The superior optical performance of the SIGMA Contemporary, Art and Sports lines of lenses is the result of efforts to pursue the highest levels of image quality. The SIGMA TELE CONVERTER TC 1411