Lens autofocus work using liveview / not viewfinder. Tried two different cameras (EFS 18-55mm Lens)

[ingallspw]

I have an issue with Auto Focusing on my EFS 18-55mm Lens.  It will autofocus using the LCD liveView screen but not the optical viewfinder.  I'll try not to blab so...

• Mechanically works perfectly (No odd noises, broken gears, etc)
• Tried two different camera bodies - Same result
• Reset all settings in cameras
• Updated firmware
• Cleaned lense, mirror, electrical contacts, etc.
• Image looks crystal clear using manual focus
• Again, autofocus works using view finder
• Other lenses work as expected on both camera bodies
• Image stabilizer on / off has no effect
• Cussing, crying, and other forms of a bad attitude have no effect either.

Any suggestions, ideas, fixes would be most appreciated!!!

[ebiggs1]

"I don't quite get the same depth of field ..."

That's because the lens calibration is off.

[Stephen]

Hello!

Try the troubleshooting on THIS page, just to see if it's a misaligned gear in your lens. This little trick works quite often on the non-STM version of the kit lens.  

I hope this helps!