10-30-2014 09:44 AM - edited 10-30-2014 09:54 AM
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12-16-2014 05:23 PM
09-22-2015 01:23 PM
10-07-2015 01:05 PM - edited 10-07-2015 01:06 PM
My first "guess" is that your camera locked focus on something OTHER than your intended subject. But without seeing an example photo (we'd prefer a photo with all of the camera's embedded meta-data, which tells us what camera settings were used when the shot was taken, still intact.) there's no way to be sure.
What camera were you using?
Was the auto-focus mode on the lens enabled?
What focus mode was the camera using (One Shot, AI Servo, etc.)
Which focus point was the camera using (did you allow it to auto-select it's own AF point or did you control which point was used?)
Can you post an example photo?
10-08-2015 09:33 AM
"If IS is on and the camera is mounted to a tripod, often times the IS tries to compensate for non-existent motion."
This is unlikely but a slight possibly. The better answer is Tim's suggestion of missed focus. Assuming you are focused on a certain point but not actually, is a pretty common mistake.