aladyforty wrote in post #18688891
I notice some in here have a 5D4 as well as 7DII. question, can a 5D4 replace the 7DII in all areas ? I do vaguely remember seeing a bird photographer test the difference and he chose to stay with 7DII for birding but I am just curious if once cropped you would have as good an image from 5D4 I do like having those 10 frames a second

Julie...I have had both camera bodies for a few years now, and I've kind of gone back and forth as far as which one I prefer for bird shooting (especially BIF). My conclusion is that for strictly bird shooting, the 7DII comes out the winner over the 5DIV, without a doubt in my mind. Others will certainly disagree with me, but the proof is in the number of keepers I end up with when comparing the two cameras. I really like the 1.6 crop factor and the 10 frames/sec that the 7DII offers. I don't like to use any teleconverters when shooting birds in flight because the focus speed is slowed down (regardless of what others say), and for the small birds especially, I want instant focusing. So I shoot the 7DII with my Canon EF 100-400mm f/4.5-5.6L IS II. lens, and figuring in the crop factor, I basically have a 650 mm lens equivalent. I use this set up the great majority of the time. My 5DIV is generally attached to my Canon EF 500mm f/4L IS II along with a 1.4 or a 2.0 TC. My settings are set for static shots rather that BIF. I get wonderful images with this set up, but rarely shoot a bird on the wing. I'm very fortunate to be able to shoot with both these cameras, but if I had to give one of them up, it would be the 5DIV.
I've never really compared the cropping ability side by side between the two cameras, but the 7DII will crop an image much better that most people give it credit for. Logically I would expect the best crops to come from the 5DIV, but honestly I don't buy that. I'm frequently amazed how nicely the 7DII images can be cropped, and still keep high image quality.
At high ISO's the 7DII is a bit noisier that the 5DIV, but that is pretty easy to handle with today's noise reduction programs that are on the market. The noise really cleans up well.
I hope this has been a little helpful, but remember, it's only my opinion.
Mike