hieu1004 wrote in post #11628057
Like I mentioned in an earlier post, some lenses have focus shift problems and no amount of MA can fix them. You have a couple options at that point.... you can send it in and hope they calibrate to your body or you have to learn to deal with it. The 50L I had was very bad and didn't last long in my possession. My Sigma 50mm did this, but within acceptable range. I haven't really bothered to test my other primes and don't really have any desire to. It hasn't shown up in real world shots so I just don't worry about it. MA is nice to have but don't rely on it as a crutch - because it might not work every time. What I'm getting at is don't drive yourself too crazy viewing at 100%!

True, I hear you. The 3 lenses that have consistent mis-focusing are the 85mm 1.8 (front), the 50mm 1.4 (back) & 17-55mm 2.8 (back). They are constistantly doing the same mis-focusing no matter what distance to subject I'm at, and no matter what aperature i'm at... the further away I get from the subject, the more noticable it is with all of them too.
So the focus isn't jumping around & shifting (like one time front, next time back, ect...) they are consistently misfocusing the same way each shot. So I'm confident MA will take care of this.
EDIT: The straw that broke the camels back is just today I brougth my 17-55 to Canon's NJ Service cetner today (lens only, should of brought the body) to have it calibrated. Got it after an hour and brought it home and...... wait for it..... it back focused WORSE than before. I said "Thats it!"
I know down the road my now 3 lens collection will grow, and I just can't deal with calibrating lens after lens, shipping em' out, waiting and so on.... Plus the 7D just dropped in price to $1549 at B&H, so I'm pulling the trigger.