ISO 6400; f2.8 at 1/1250 sec. Sigma 70-200mm f2.8 EF mount Sports lens with MC-21 adapter- My assignment was a local street fair at sunset, and my favorite lens for an event like this is my Sigma 70-200mm f2.8 Sport lens. While there are 14 lenses available in native L mount, the fp can also utilize 29 DSLR lenses in EF mount by using the MC-21 adapter.