mystik610 wrote in post #15856524
Been following this since its been announced, but have been apprehensive to bite the bullet due to Sigma's reputation with QC. IQ looks impressive, but has anyone experienced any focusing issues and had to go through multiple copies to get a 'keeper'? Anyone need to MFA the lens? If so, by how much?
@BigCarbs: in the context of this topic, which mystik610 started himself, it's obvious that he has some skepticism - shared by many and based on past experiences with earlier Sigma products.
Some of us don't want to take the risk of wasting client's time and potentially ruining photographic opportunities.
You make the analogy with putting a car on a dyno, and that's exactly the equivalent of what lens reviewers do. Especially if you have the choice between multiple products in a similar price range.
If people plan to use this lens as a workhorse product, it's perfectly reasonable (and in fact smart) to ensure yourself that it's working up to spec. Your tone throughout this topic has been generally negative and proceeded to go to downright condescending:
BigCarbs wrote in post #15909292
So did you take any real pics with the lens or just using it to shoot calibration targets?
BigCarbs wrote in post #15910449
I isn't do any testing with mine when I got it and took it to a wedding, everything came out great. I think if I take a bunch of pics of calibration targets I could find flaws
BigCarbs wrote in post #15911146
Yeah I test drive a car but I don't put it on a dyno to see if it is getting the specified horsepower rating before I buy it.
BigCarbs wrote in post #15913469
Im not saying your wrong. Im saying to use it in the real world and relax a bit lol. Its like if you keep going to the doctor thinking you have cancer then one day you will get it. Same with the lens, after many many "test" shots you can find flaws.
BigCarbs wrote in post #15914538
But be sure to do more testing, check it under LED lighting because that will be the main source of indoor lighting in the future.
In my opinion you're wrong to blindly trust a lens from a manufacturer that has had so many bad QC for any commercial work.
I for one value all user tests and experiences such as mystik610 posted, so if you have a problem with that, it's best to just skip this topic.
Certainly beats discouraging and talking down to people who take time out of their day to share results and inform their peers.