I just read that Sigma is soon releasing a new lens..50mm f/1.4 EX DG HSM. The glass is ready for pre-order for Nikon, Canon & Sigma, my question is ...does anyone know how long Sigma takes to put out a 4/3 lens after the initial release? I purchased a Sigma lens for the first time a little while ago (105mm macro) so I'm not too familiar with the company release habits.
Thanks guys

~Rob
p.s The reason I'm asking is because I'm in the market for a good prime lens.