7D Sigma 30mm 1:1.4 DC HSM OOF?

I have been using this lens with my 30D and only ever had fantastic results. I have now upgraded to a 7D and all of my shots seem OOF.
Any ideas any fixes?

I have something funny going on here. I have the beep turned on and focus manually and I get the green light flash and then a beep. I focus on AF and it doesn't get a green box or beep but you can here it searching for focus and stops as if it has acquired focus.

Well I have just tried it indoors with reasonable lighting with my tokina 12-24 and again on AF it doesn't focus lock(beep) yet if I do it manually it works. Have I got a duff one?

Micro adjustment on the 7D...try that.

are you sure the 7D isnt in AI Servo? thats what it sounds like

not sure about your OOF issue.. micro focus adjustmet as HighPixel recommended.. or maybe post a sample?

There are various C-Fn relating to focus as well as the various focus modes on the 7D, could be any one of a dozen reasons why you are having trouble. I suggest setting it to single focus point, and one shot focus and try that. You need to do some serious manual reading to get to grips withthe focus system.

I had the exact same problem with my Siggy 30mm when I switched from my 30D to a 7D - where my lens would focus very nicely and be tack sharp on the 30D it was awful with the 7D. A large amount of Micro Adjustment has solved the problem but it is odd that there is so much difference.

Mike wrote in post #11670857
I had the exact same problem with my Siggy 30mm when I switched from my 30D to a 7D - where my lens would focus very nicely and be tack sharp on the 30D it was awful with the 7D. A large amount of Micro Adjustment has solved the problem but it is odd that there is so much difference.

Hooray at last someone with the same problem. I was about to take the 7D back as I thought it was faulty. Can you tell me what your micro adjustment is as it would be interesting to compare figures.
Also how did you do it did you use some sort of chart or trial and error?

I did mine by trial and error. I was close to binning the Sigma and fell out of love with it for a good 9 months or so - I just didn't trust it any more. After spending some time MAing it was all ironed out and I like it again! (Still, the idea of the 35L is still nagging at me )

I cannot remember off the top of my head how much and which way though...

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Mike wrote in post #11670958
I did mine by trial and error. I was close to binning the Sigma and fell out of love with it for a good 9 months or so - I just didn't trust it any more. After spending some time MAing it was all ironed out and I like it again! (Still, the idea of the 35L is still nagging at me )

I cannot remember off the top of my head how much and which way though...

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Yep I know the feeling and I have only had it a week. I love the sigma.
Anyway I have sussed it out. I have just spent half an hour setting the lens up and it is now perfect. I had to set the C.Fn to +12 to get it smack on.
What a flaming palava.
I will now do my Tokina 12-24 and Canon 70-200L.
It will be interesting to see if the Canon needs adjusting.
I wonder if all the lenses need +12 then should I return the camera as that spells a fault to me.

Same issue here, large amount needed for the sigma 30mm, virtually nothing for the 10-20 and juuuust a tad for the 70-200 (all Sigma).

Badgerballs wrote in post #11671137
Yep I know the feeling and I have only had it a week. I love the sigma.
Anyway I have sussed it out. I have just spent half an hour setting the lens up and it is now perfect. I had to set the C.Fn to +12 to get it smack on.
What a flaming palava.
I will now do my Tokina 12-24 and Canon 70-200L.
It will be interesting to see if the Canon needs adjusting.
I wonder if all the lenses need +12 then should I return the camera as that spells a fault to me.

Micro adjustments go from -20 to 20, I don't see why lenses all needing double digit adjustments would cause you concern on the body. Yes, it probably means the body needs the slightest of tweaks, but since the capability to do the micro adjustment is there, and you can use it to get the most out of all your lenses, why send it back? Mine is the same way, I used to worry about it, but long since figured that since I am able to adjust each lens with no issues, I don't need to worry about the body.

The Siggy was the only lens that needed any adjustments. All the rest are pretty much spot on. It's very odd!

Badgerballs wrote in post #11671137
Yep I know the feeling and I have only had it a week. I love the sigma.
Anyway I have sussed it out. I have just spent half an hour setting the lens up and it is now perfect. I had to set the C.Fn to +12 to get it smack on.
What a flaming palava.
I will now do my Tokina 12-24 and Canon 70-200L.
It will be interesting to see if the Canon needs adjusting.
I wonder if all the lenses need +12 then should I return the camera as that spells a fault to me.

Well,Well,Well why should I have not guessed!!
Sigma 30mm C.Fn 3:5 +12
Tokina 12-24 " +12
Canon 70-200 " +/-0

Read into that what you will.

TeamSpeed wrote in post #11671201
Micro adjustments go from -20 to 20, I don't see why lenses all needing double digit adjustments would cause you concern on the body. Yes, it probably means the body needs the slightest of tweaks, but since the capability to do the micro adjustment is there, and you can use it to get the most out of all your lenses, why send it back? Mine is the same way, I used to worry about it, but long since figured that since I am able to adjust each lens with no issues, I don't need to worry about the body.

Yep I totally agree with you. I must admit if all my lenses were +12 then it would obviously show a bias and tells me the camera needs adjusting as technically it would reduce your +range to 8 points which may mean a lens could fall outside.
But since my third party lenses were both +12 but the Canon was +/-0 then I am no longer worried.

Badgerballs wrote in post #11671325
Well,Well,Well why should I have not guessed!!
Sigma 30mm C.Fn 3:5 +12
Tokina 12-24 " +12
Canon 70-200 " +/-0

Read into that what you will.

At what focal lengths did you MA the zooms? The general opinion seems to be that a zoom might have different MA requirements at different focal lengths. The only lens I have MAed is my 100-400, and since I nearly always have it at 400mm, I didn't worry about other focal lengths, but I could see how you would be likely to use yours at a range of FLs.

Mike wrote in post #11670857
I had the exact same problem with my Siggy 30mm when I switched from my 30D to a 7D - where my lens would focus very nicely and be tack sharp on the 30D it was awful with the 7D. A large amount of Micro Adjustment has solved the problem but it is odd that there is so much difference.

I had this experience as well. Worked fine on my T1i, 40D and my friend's 5D2, but needed MA on my 7D and another (different) 5D2. Different lens + body combo have different results.