Here are the images of Sigma 15mm F1.4 DC Contemporary and Sigma 35mm F1.4 DG II Art Lens. 
Key features of the Sigma 15mm F1.4 DC | Contemporary:
- 11 elements in 13 groups
- 9-blade diaphragm
- Weighs only 220g, with a length of 64.8mm (Sony E-mount)
- 50% lighter than the 16mm F1.4 DC DN, with a filter diameter reduced from 67mm to just 58mm
- Optimized for video shooting (extremely minimal breathing effect)
Supports Sony E, Nikon F, Canon EF, Leica L, Pentax K, M42
Key features of the Sigma 35mm F1.4 DG II | ART:
- 12 elements in 15 groups
- 11-blade diaphragm
- E-mount version weighs 525g, L-mount version 530g
- Minimum focusing distance of 28cm
- Maximum magnification of 1:5.4
- Dual HLA high-speed motors
- Breathing effect optimized