with that USB docking thingy from sigma it looks like we can adjust focus at 4 different focusing distances for primes. Sigma posted a video of it in action. looks very clear and powerful to me.
I'm very pleased with my Sigma 85mm 1.4 and will probably get the new 35mm at some point however I do wonder if Sigma have produced the docking gizmo to get around the fact their quality control appears to be, um, lacking
if you read/believe the various posts on the net. Instead of having customers returning new lenses for exchange or service centre tweaking, the customer can do it themselves by correcting for four different focus points via their gizmo.
Sounds like Sigma might be putting the solution to their own problem into the hands of the customer and this may fool some customers into thinking that Sigma are being "customer focussed" (no pun intended). Maybe Sigma should sort out quality issues at source rather than after the purchase has been made?
Just a thought.