24-70 L (Calibration needed?)

I will be a pixel peeper from hell Alan. This money and to see any sort of flaw is a disappointment. I hope this is nothing... We will see. Still got the Tammy though... :/

Expecting perfection in a zoom (yes, even an L) is absurd. Perhaps you should stick to the consumer stuff so you can rest easy knowing you didn't spend as much. And no, that's not me being a jerk; that's me being practical.

I have the brick and yes it can produce some CA now and again but I can live with it. MY 85L can be worse tho.

I've shot many pictures with my 24-70L, both indoors and out, with and without flash, at various focal lengths and apertures and have never seen any hint of CA in any of them (just a good copy I suppose). I would definitely send it into the Canon service center and have them evaluate it....

You call that CA?

This is a 100% crop from the 85 f/1.2L II, even more expensive than the 24-70 and a Prime too:

Well I see what all ov are you are getting at. I will push on and see if the issue persist. If it does become unusually common, I make a move. But if in rare circumstances, I will hang in there. The focus speed is just so nice when compare to any "consumer" lens.

smorter, That's from the 1.2? Jeez, Had no idea, I got the 1.8 and haven't seen anything like that (not that I know of). I guess that's the trade off for the super larger aperture?

Livinthalife wrote in post #8102794
I would have to call BH an see if they can exchange, they may honor that. So what is everyone's recommendation, return and exchange? Calibration?

Exchange it. Why pay more money to have it calibrated? Canon tends to have a very low amount of bad samples anyways.. I had my 28-70 Calibrated only after 7 years (last month) it is UQ date code so it was time. Mind you mine doesn't have weather sealing but I still brought it to harsh weathered hikes (I am Canadian anyways and the Rockies? Just amazing! ) for a week at a time and it performed like a champ, but because I was seeing specks of dust more and more in the glass and the zoom ring was getting tight also Canon said they will calibrate it so why not right? All in one job for $125Cad here in Toronto..

As for your situation just S-T-O-P breaking your head.. Exchange it and this thread will be over =)

clint0914 wrote in post #8107325
Exchange it. Why pay more money to have it calibrated?

If it's under warranty (I assume Andy bought it new, so it is), he wouldn't be paying to have it calibrated.

cdifoto wrote in post #8107613
If it's under warranty (I assume Andy bought it new, so it is), he wouldn't be paying to have it calibrated.

he will be once it is past the exchange date as he'll be sending this defective lens back a few times trying to get them to correct and uncorrectable problem.

some 24-70's are just plain duds for the Pixel Peeper crowd.
this one is showing Red fringe that most of us have never seen from this lens..........my exception to that statement is my 1st copy which did.
it was always good or bad depending on the lighting.

while i think the Red fringe is probably tolerable, we have not seen enough of what we need to really determine whether or not this copy is a complete dud...........focusing is spot on? comes to mind

summerwind4 wrote in post #8107667
he will be once it is past the exchange date as he'll be sending this defective lens back a few times trying to get them to correct and uncorrectable problem.

Nope. Warranties take care of this. He pays shipping to Canon the first time, they take care of the rest. If it needs sent in yet again, they'll pay shipping to get it there again We're talking about sending it to Canon, not B&H.

Don't see anything wrong with the lens, The foot you are referring to is the part protruding the most from the focus plane hense it is out of focus.
Unfortunately slightly out of focus objects especially bright ones do not blend seamlessly, very often you see ghosting or doble images, Any lens does that and your case is a pretty mild one. Check for example the pinky on the child's right hand. Despite being in the same light condition you do not see any fringing as it is closer to the focus plane.

When it comes to questionable lenses I'll buy local and pay a premium. The 24-70L, Sigma 30 f/1.4, Sigma 50 f/1.4, 50L etc would be on my list for local purchases. In due time I'll buy a 50L or go a cheaper route and buy a sigma 50. When I do purchase one of these lenses I am anticipating on dropping them back to the shop so "They" pay for shipping/insurance (ship back to recal) etc and all those hassles. Infact my local shop I deal with will even ship a sigma after several years past the initial purchase.

People glorify the 24-70L but its no perfect gem. Just be observant and read many people "needing" to tweek with Micro AF adjust regardless of being "within spec" from Canon.

cdifoto wrote in post #8107675
Nope. Warranties take care of this. He pays shipping to Canon the first time, they take care of the rest. If it needs sent in yet again, they'll pay shipping to get it there again We're talking about sending it to Canon, not B&H.

well this lens has a definate defect and it's just bad advice to tell the OP to send it in for a defect that we all know they can't change.
front/back focusing issue will be an easy for Canon service, but fringing has to do with the glass...............th​ey can't fix htat.
if the OP is happy with this while it's a known fact that the good copies of the 24-70 never suffer from fringing, and you feel that Pixel Peeping is the best advice, then by all means have at it, and i hope the OP is happy with his lens that is second best......i mean it only cost a little over a 1,000 bucks right?
why expect anything more

AlanU wrote in post #8107922
When it comes to questionable lenses I'll buy local and pay a premium. The 24-70L, Sigma 30 f/1.4, Sigma 50 f/1.4, 50L etc would be on my list for local purchases. In due time I'll buy a 50L or go a cheaper route and buy a sigma 50. When I do purchase one of these lenses I am anticipating on dropping them back to the shop so "They" pay for shipping/insurance (ship back to recal) etc and all those hassles. Infact my local shop I deal with will even ship a sigma after several years past the initial purchase.

People glorify the 24-70L but its no perfect gem. Just be observant and read many people "needing" to tweek with Micro AF adjust regardless of being "within spec" from Canon.

ZACTLY!!....i'd never buy a lens online. my local shop matches B&H, and i get to test each copy in stock to find the one i feel is perfect. and if none of those are perf, i wait for the next couple that come in.
B&H is by far the nicest place to deal with though and they will happily take items back and exchanges are hassle free.............but glass is the major investment in our systems.........no sense in playing roulette

To demonstrate what I was talking about in the previous post check out this picture:. The branch in the top left corner clearly shows a huge ammount of blue fringing. But that is not CA. It is just the way the focus starts to disappear. Same thing in your case but you have red 'fringing' simply because the object and the surroundings are predominantly red.

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