New answers tagged tamron
Try Calibrating the Diopter of Your Camera to see if that helps. Since having the Diopter not calibrated may make the lens look out of focus.
Without more details about what shooting modes and settings you have selected, your question doesn't give us very much to go on. The 70D is a highly configurable camera and with some combinations of settings selected the behavior you describe would be as expected. It is possible that via certain custom settings options the AF has been disabled with a half ...
I've used both, side by side, simultaneously, switching between full frame and crop bodies at multiple indoor and outdoor events shooting both photo and video for over a year. My advice is not to believe the hype or anyone who blindly points you toward the more expensive options just because of a red line running around the lens. This is in no way meant to ...
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