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Lenses / Re: Focusing Problem with 600mm f/4.0L IS II with 1.4X Extender
« on: February 14, 2013, 12:07:04 PM »
Do you have another camera to try it with. I tried my 600 II out for the first time on Sunday with a 5D III. I too was getting fuzzy results. Come to find out...the MA was set at -8 automagically. I never set it for that lens. So I entered into MA and use the INFO button (I think twice) to enter in the lens serial number and set the MA to 0. That seemed to correct the problem. Have you tried disabling MA all together?
Here is a test shot from Monday night shot at 840mm (1.4x III was used) at ISO 800 and f/5.6 with 0.3 second exposure (IS program 1 was on):
Here is a test shot from Monday night shot at 840mm (1.4x III was used) at ISO 800 and f/5.6 with 0.3 second exposure (IS program 1 was on):
).







So the 200-400 still doesn't help that much.