Adam2
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Veteran Member
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Posts: 7,615
Re: R7 interface and performance with older lenses
jckk wrote:
As others have said, very nice write-up, especially about the usage. I went with the R5 over the R6 since it has better video options and more pixels (I like to look at details). Having the R5, I knew when I bought it that buying an eventual crop RF-mount camera wouldn't be a sure thing for me. I haven't bought the R7 and not sure if I will.
The R5 was my first Canon MILC and the R7 was added when it first came out.
With DSLRs, I typically used a 7D/7D2 + 5D3/5D4 combo when out photographing birds and other wildlife. A big benefit was having a very similar interface across the models, so quickly switching from one camera to another in the field didn't cause issues for me. The R7 having a significantly different interface than the R5 is a negative for me. Will I eventually get used to it and seamlessly move between the R5 and R7 when out shooting, or will I have occasional issues, miss shots, and have some frustrations about it? I'm not sure, and right now this is the biggest negative for me with the R7.
I much preferred the 5d series over the 7d series which IMHO suffered from AF consistency issues. The lack of identical interface is spoken of frequently, though I've found it not to be a problem. By-in-large the cameras are set up similarly but because of button layout, they cannot be identical. When I am using the pair together, I usually have the R5 connected to the big white and the R7 slung on my shoulder with the 100-500.
On the plus side for the R7, getting the full fps with the Canon 500mm f/4 IS (original) and the R7's higher pixel density is a big benefit for me. I typically used the 7D/7D2 with this lens but currently use it with the R5. The 6.8 fps feels sluggish since I'm used to 10 fps or more. I have the 1.4x III and 2x III, but haven't liked my copy of the lens with teleconverters, so I don't use them to to get more pixels on the subject. Having said that, I need to do some controlled tests to see if for some reason it's better with the R5 than what I was getting with the 7D2 or 5D4. When I last did some checks, I wasn't seeing image quality hits from missed focus, which can be a common source of issues with teleconverters.
Appreciate the limitations of the 500mm f/4. I have an IS II and don't have these issues. It performs flawlessly on the R5 with the 1.4x III and takes a significant hit in terms of IQ with the 2x III. My experience with the adapted lens on the R7 is less as it just doesn't seem as an assured combination and the R7 has really become my walking/hiking body with the 100-500.
So I'm somewhat in the opposite position than you. You have the R6 and R7 and will continue to use them to see if this setup works for you, or decide later that you want to move to the R5 to replace both. I have the R5 and while I won't replace it with the R6, I'll see if I want to get the R7 later for the benefits with the 500 and the occasional times that I'm really focal length limited. The other eventual solution will be to get the RF 500 when it's released, so that will take care of the fps limits and TC performance. And also take care of a chunk out of my bank account...:-D
Many users, myself included purchases the R7 for the benefit of the 1.6 crop. I'm not entirely certain that it eclipses FL limitations.
Question: If you have the RF 1.4x, have you tried it with the R7 and 100-500? Wondering how it holds up when you want a lot of focal length.
Yes, I have the RF 1.4x and while I have tested it extensively it really doesn't suit my shooting style. While the 100-500 is a really solid performing lens, adding the TC does degrade the IQ, increase the CA, and makes flare worse. If one can fill up the frame, these effects are less apparent. More importantly, the functional design of these two optical elements leaves a lot to be desired. The lens has to bayonet out to 300mm to accept the TC so the lens is constantly in the semi-extended position. Additionally, one loses the wide angle benefit and in effect it becomes a 420-700 mm lens with a minimum f/10 at the long position.
Nonetheless, if I were travelling to a remote location and wanted to have all of the bases covered, I'd take the 100-500 with the TC.
James