RodS57 said:
neuroanatomist said:
East Wind Photography said:
Wow if he never AFMA'd the cameras he was testing I guess that pretty much invalidates the tests.
Invalid tests? But...but...he does a lot of testing for his YouTube channel. If that doesn't make him an expert, what does??
Without taking pot shots at Michael
I think it is reasonable to expect a new camera to be calibrated correctly;
I believe there will be copy variation but what does canon need to do to minimize this variation.
I think, based on the posts I've read that there may be a surprisingly high percentage of 7D2's coming off the assembly line with defects.
And yes, I understand that six people with problems usually make a lot more noise than 100 people without problems. In any forum it is virtually impossible to gauge the real extend of the problem but I believe a problem does exist.
For me, this is the only body I have that gives the option to do AFMA. I like having the ability to do these adjustments. So far all these 'can't focus correctly' posts have left me in sort of a state of confusion. Before, if the shot was bad then I screwed up. Now I can blame it on the crappy 7D2
Rod
Rod it is true that most of the consumer level cameras do not have AFMA adjustment up to and including the 60D. The 70D replacement included this capability due to consumer pressure. All of the pro and semi pro cameras have this feature. I have friends that have consumer cameras and dont know their equipment is off. They just assume the lens quality is bad or worse just assume it's sharp not knowing any better and proceed to over sharpen on their computer.
The thing about AFMA is that if you use a higher F-stop you can mask the error and some people just assume that their lens works better at F8 and F11.
I dont have one single lens both old and new that have the same AFMA setting. A difference of 2 or 3 points wide open (especially with fast lenses) can make a huge difference in sharpness and more so with a crop sensor since the error is also magnified.
So for anyone to say that it should come sharp from the factory is just not possible unless the factory has AFMA or mechanically adjusted the camera to the EXACT same lens before shipping it. In the old days or with consumer cameras today, you have to send both the camera and lens to Canon and have them match them up, or all of your lenses to the same camera. AFMA lets us do it any time we need to.
Not to say that Canon should not be calibrating to some reference lens on the assembly line, but it's not reasonable to expect a factory camera to be dead on with every lens out there.