I always read that when possible it's best to "get things right in camera" which I always aim for - so following that line of thinking, would it be worthwhile to get the Canon 135mm f/2.8 soft focus lens for those times I want soft focus portraits, like the one Canon published here:
http://www.usa.canon.com/CUSA/assets/app/images/lens/ef_135_28sample1.jpg
Or do you think it would be best to use a super sharp lens like my new Zeiss 135mm APO Sonnar and then apply some kind of effect in post? Would it be the same kind of softness look as in the example photo above? Or does the lens designed with soft focus add something significant to the equation that post only tries to emulate?
Thank you.