Weird AF problem on T2i

Hey fellow POTN'ers

As the title suggest I'm having a weird behavior on my camera with my newly calibrated 17-55 from canon.

The problem is when I tripod mount my body and lens then try to take a picture of something it tends to front focus a bit. I have a wireless trigger and have turned off the IS. I didn't do any test charts or anything and ill post some pictures if need be later but the weird part is if I take the same picture in live view mode its tack sharp. I understand in live view mode it uses a contrast based focus system. I just wanted to know if anyone has experienced this before?

Bump for any suggestions...basicall​y the lens is tack sharp when using live view autofocus but is front focusing on a tripod when using the regular autofocus through the view finder...

Are you using single point focusing when using the tripod, trying using the center point.
Live view focusing is the most accurate as it is using the sensor to focus.

lannes wrote in post #10796596
Are you using single point focusing when using the tripod, trying using the center point.
Live view focusing is the most accurate as it is using the sensor to focus.

Yah pics were one shot and center point focus...ill get some pics up soon to show you guys what I mean...literally its been back less than a day from canon service...kinda strange to me...any other ideas?

eg6turbo wrote in post #10797248
Yah pics were one shot and center point focus...ill get some pics up soon to show you guys what I mean...literally its been back less than a day from canon service...kinda strange to me...any other ideas?

Use this process to see if your lens needs to be adjusted again.

http://www.birdphotogr​aphers.net …AF-microadjustment-tricks

Remember to set your live view focusing mode to "Quick Mode"

Did you get the body and lens calibrated together ?
Even though the lens was calibrated to spec, the body may be out, this is where Micro adjust would have been useful, but unfortunately is not available on the T2i.