dan84 wrote in post #17939964
Yes looking to upgrade the 60d, tbh i'd be looking more at the 80d rather than 70d/7d II but since that isn't released yet, mentioned the others for af comparison. The 60d is a fantastic camera but where it falls flat for me is the following:
- Too much noise past ISO 800.
- Improved IQ in newer sensors
- I find the af misses a lot in low light (ISO 1000 +)
Other features but less important are small buffer, no video af, no microadjust and fps. When you say the 6d outer focus points are rubbish, is that both moving and static subjects? e.g full body portrait in a low light. I would keep the 60d due to the fact I wouldn't get much on the used market, but I don't want to carry 2 bodies so would just be as a back if anything went wrong or perhaps if I ever needed more reach. Cropping defeats the point a bit as you'll be throwing away a lot of pixels if the focus is near the edge of the frame?
I find the outer focus points on the 6D to be so unreliable that I won't use them for a static, brightly lit subject, with a wide aperture. With a narrower aperture I find that focus is more often acceptable simply due to the wider DOF. Even with MFA'd lenses the outer focus points are unreliable.
The centre focus point is phenomenal and will achieve focus in very low light.
I do a LOT of cropping on wide aperture 6D images. I throw a lot of pixels away, but the IQ of what i'm left with is awesome up to ISO 12800 (with NR).
Now, don't get me wrong . . . I love my 6D. I'm packing up my kit right now for some landscape work, and it is the 6D that is going with me on the trek, not the 5D3. It is lightweight, small, easy to pack, has spectacular IQ, and is the perfect companion to my 21mm manual focus Zeiss Distagon.
The 6D would certainly be a solution to your first two reasons for wanting to upgrade. But, if you're not using the centre AF point, you're still going to get a lot of AF misses in low light. The 60D has nine cross type focus points, and the 6D only has the one: the centre point which is the only one that will focus at -3EV. The 6D's autofocus system is less sophisticated than the 60D's.