Long story short, I have a Canon 40d DSLR and a few lenses. I'll be getting a bonus for Xmas this year so I'm thinking of upgrading cameras, primarily to have a video option and a much faster AF system would be helpful. I'm what you would call a prosumer user, I shoot almost always exclusively on semi-manual control setting shutter and F-stop myself for most shots; in other words I rarely shoot in 'Auto' mode.
I like my 40d but it's showing its age in picture output, (only 10.1 MP) and more importantly poor AF and lack of lower light focusing. The lack of Video is not the main reason but I'd like the option especially for use with my son. I'm thinking jumping up to a 5D MarkIII, 6D or even a 7D MarkIII; really leaning towards the full-frame sensor but reviews of each camera tell the disadvantage the 7d has due to the 1.6 is more than made up for with other features. I have one 'L' bodied lense (70-200mm f2.8,) 28-135mm kit lens, 50mm Prime and an Speedlight 550 flash. I shoot with the L lens most of the time due to the tack sharp shots bit I'm thinking of picking up maybe the 24-105L for all around use in addition to a new body.
So, give me some thoughts; do any of you own/have experience with these cameras? The 5Ds is a tad out my price range but a factory refurb is not, unless I'm making money with my camera I don't see the stretch. I'd like some suggestions.
Update: So I got a 7D mkII with a Canon 28-105L (f4) during the Canon rebate program. I got it after Christmas so I haven't had a ton of time to play with it, I'm very impressed. One negative and it's not really the camera, my Adobe CS5 won't read the RAW files (camera model not supported by this version of Camera RAW,) so I have to convert to dng files first and then import; not that big of a deal but it looks like upgrading the Camera RAW driver will fix it; for some reason when I try to update the update fails. I haven't had the time to sit down and figure it out but the output of that combo is very, very impressive.
I went back and forth of the 24-105 and 18-135 lens, I know the limitations of the crop sensor on the 24-105 but since I don't shoot wide very often it wasn't a big deal and I may score a 10-22 EF-S from Canon's refurb site when they get more stock so I have that covered. After you use a 'L' body once forever will it rule your destiny.