Sigma 18-35mm f/1.8 DC HSM Art Lens for Sony A -$550
https://www.bhphotovideo.com/c/product/983905-REG/sigma_210_205_18_35mm_f1_8_dc_hsm.html?
Sigma 18-35mm f/1.8 DC HSM Art Lens for Nikon F -$550
https://www.bhphotovideo.com/c/product/967345-REG/sigma_18_35mm_f1_8_dc_hsm.html?
https://www.bhphotovide