Sigma 135mm F2.8 YS (Pan Tele/Mini Tele)
Launched 1975
Sigma’s XQ range will have information added as it becomes available – we don’t have the original PR for this era. The YS – Yamaki System – lenses used interchangeable mounts in order to meet the growing SLR market’s wide variety of bodies. Unlike many adaptor systems, the YS allowed auto aperture and metering.
| Specifications | |
| Construction | |
| Focal Length | 135mm |
| Maximum Aperture | ƒ2.8 |
| Minimum Aperture | ƒ22 |
| Field of View | NA ° |
| Minimum Focus Distance | NA cm |
| Number of blades | NA |
| Maximum Magnification | NA |
| Zooming System | NA |
| Filter Size | NA |
| Diameter | mm (max.) |
| Length | mm |
| Weight | g |
| SRP at launch: | |
| Available Mounts: | YS – various Manual bodies. |