This is why I bought the Sigma 70-200 f2.8 HSM. Here are a couple of shots of my daughter in the competition (she just missed out on a podium place) - both shots A700 + Sigma 70-200 f2.8 HSM ISO 1250 and aperture f3.2 - the local rink has poor lighting and it is a real struggle to get sharp images of moving skaters.


Both shot in cRAW, with custom WB and noise reduction using Noiseware Pro
Cheers
Murph
