Youtube reviews of the new Sigma 17mm f/4, 50mm f/2 and 23mm f/1.4 E-mount lenses SonyAlpha Admin 2 years ago 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.
![Sigma 17 mm f/4 DG DN | Knackscharf ab der ersten Sekunde/Blende [Test auf Deutsch]](https://i.ytimg.com/vi/g88F5nuzWR8/hqdefault.jpg)
