Thanks guys for all the great responses. And to answer a couple question about my needs Id say that yes I can use the GH4 for my video needs but I really wanted to use that for higher end video needs such as my music videos and film work or documentary work. I'm also not going to give companies the chance to ask for me to shoot in 4k for the same price as I shoot in 1080, Id just be setting myself up to be taken advantage of.
I don't have a good set of MFT lenses for my Panasonic cameras and would mostly use my 14mm 2.5 but don't really have any option to zoom while I'm filming during the set tours which by the way can be in somewhat low light from time to time, but I always have a nice LED on cam light. I have a old Nikon zoom that fits with an adapter but its tough to use in those situations since all the touch screen options cant be used for that type of non MFT lens.
Its always easier to use my Canon 5D mark II with my all purpose 24-105 mm 4.0 L series lens that I have control over the aperture. The only problem is that only records for 12 mins straight then I have to start over. Some of my set visits or interviews can run longer than 12 mins and when your working with celebrities they don't want to be stopped mid sentence or ask to repeat that because my camera timed out. LOL
Thats why I thought the 70D would be good choice to use both for video work and occasional outdoor natural daylight head-shots. If I'm in a studio or my garage that is where I can do indoor shoots, I always have great lighting with my Kino Flos and strobe lights as well when needed.
Someone mentioned that if I go with the 70D that my L series lenses might not be a good choice with that camera. Does the 24-105mm 4.0 and the 70-200mm 2.8 not work well with the 70D? I also have a Canon 50 mm AF 2.5 macro lens I could use as well.
Once again my uses for the 6D or 70D would be so that all the lenses I have would work best with those cameras for all purpose web based work which is mostly under 30 min interviews, events and head-shots. I also could let my wife use the camera for her blog posts and if I'm not there I thought the 70D would be easier to use for her to film with. As well as to use with the GH4 sometimes as a second angle. When I shoot my head-shots I always stay between 4 - 5.6 so I will have most of the face in focus. Casting directors do not like one eye in focus and the other slightly out of focus.
When I do my set interviews with video sometimes I like to be at 1250 ISO and sometimes 1600 when I was using the GH3. But 1250 seems to be great when using the Canon 5D Mark II.
I understand some of you may wonder why I don't want to do all my video work with GH4 but I don't want to go out and buy expensive MFT lenses right now and I have a lot of accessories for the 5D, such as Zacuto Z-Finder that really helps. . I do agree with some on here that maybe I just do my current 1080p video work with the GH4 and take photos with my 5D Mark II until September when Photokina reveals some new cameras. I don't feel I want to pay over $3000 for the 5D Mark III body, when for almost that much I can get a GH4 and a Canon 70D. I will put an example of the head-shots I'm doing which most of the time they will only be printed out to 8x11.
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