as a lot of you know i have two bodies to use this new lens on ,after a lot of messing around i decided that i.q wasn't up to it on the 1d3 and switched to the 70d .reasons being my lad had helped with the m.a on the 1d3 and recommended that i go back to 0 adjustment .the trouble is i prefer the handling on the 1d3 .so on friday night i set up the test zone again and came up with exactly the same results as i had got a week or so earlier that it needed a setting of -5 -6 for best performance .so heres the result of yesterdays field trip a blackbird taken at 600mm at 1/250th sec hand held .focus point is just above the eye on this i think its good enough anyway
i live thurgh by blackfox wildlife and nature imaging, on Flickr
![](https://farm9.staticflickr.com/8743/16749196121_588b21b05e_b.jpg)
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