« on: April 23, 2014, 10:57:44 PM »
Regardless, the real issue is this is n=1 lens.
On this we are in 100% agreement.
Let me also be very clear that I'm not questioning his honesty or integrity. Rather, in my line of work, I don't accept anyone's work without seeing the data to back up the conclusions. Otherwise people get dead. Now we're not risking bodily injury here, even though these new 50s aren't our dad's old compact, lightweight primes. But we are talking about a serious knock on a new product that seems somewhat out of character with the current paradigm. If I were Sigma, and I was looking to build on my newly improving reputation, I would not let a lens anywhere near the street that was such a laggard in focus precision, especially on current flagship cameras of the big OEM players. Certainly I would not release it with the fanfare this lens is getting. I'd slap a Quantaray silkscreen on that puppy and let it die a death in kit lens hell.
Me? I'm just thinking I'd love to dig in on the at sample shoot and do some root cause analysis. I guess that's the engineer and test geek in me, though.