From Big to Small: 20mm E-mount lens size comparison
via CameraSize
This is the size comaprison between the current three 20mm E-mount lenses (two for FF and one for APS-C).
Links to the three 20mm lenses:
Sigma 20mm at [shopcountry 71590]
Tokina 20mm at [shopcountry 71588]
Sony 20mm at [shopcountry 71589]
New Sigma FE lenses:
All lenses listed on one page at BHphoto (Click here).
Sigma 14mm f/1.8 for $1,599 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 20mm f/1.4 for $899 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 24mm f/1.4 for $849 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 35mm f/1.4 for $899 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 50mm f/1.4 for $949 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 70mm macro for $569 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 85mm f/1.4 for $1,199 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 105mm f/1.4 for $1,599 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 135mm f/1.8 for $1,399 at BHphoto, FocusCamera, Amazon and Adorama.