Quote:
Originally Posted by M_Six
The 2x TC does slow AF a bit. I bought a Canon grip for it, but it won't be here until Tuesday. I'm hoping the extra battery helps a bit. Still, there is clearly a focus issue with even static objects. I'll put the USB dock to work this week and dial it in. I can walk over to the football field and have a ready-made focus scale to figure out if it's front or back focusing.
DC, those hummer pics I got in Colorado were with the 2x TC, but on my 5D MkIII body. They were pretty sharp even with a hefty crop. But the Siggy was tuned to that body. Now I need to re-tune it to the 7D MkII, which I'd like to be my dedicated birding and sports rig.
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I read somewhere that the battery grip does not improve things. The voltage is the same, so I can understand why it wouldn't help.
Hummers are easy vs. raptors flying straight at you. Still, you have to optimize it for that camera to have any hope.
Looking forward to the results.
Dave