Youtube reviews of the new Sigma 17mm f/4, 50mm f/2 and 23mm f/1.4 E-mount lenses
Preorders: 17mm lens at BHphoto, Amazon, Adorama, FotoErhardt, FotoKoch, WexUK. 23mm lens at BHphoto, Amazon, Adorama, FotoErhardt, FotoKoch, WexUK. 50mm lens at BHphoto, Amazon, Adorama, FotoErhardt, FotoKoch, WexUK. sonyalpharumors.com »