Canon R7 rumors - APS-C?

Canonuser123 wrote in post #19208160
The 90D may have a decent sensor but a lot of people were complaining about the autofocus not working well unless you used live view.

The 90D AF points themselves are pretty good; it is the collective AF point intelligence when trying to track a moving subject in burst mode that is weak for a camera seen as a possible upgrade from the 7D2. The AF system does not seem to do a lot of intelligent analysis or perhaps gets thrown off when something falls into the gaps between AF points.

With center-point AF and static subjects, I found it to be as good or better than the 7D2. I did a controlled experiment once with two different copies of the same lens and TC model, to see how easily each camera locked focus at f/8 in a very dark indoor environment, and the 90D locked on while the 7D2 hunted a lot. I switched the optics on the bodies, to eliminate any specific lens or TC superiority, and results were the same. Lots of locking with the 90D, and lots of hunting with the 7D2, in very low light, at 560/8.

Jeff USN Photog 72-76 wrote in post #19208261
Most of the birds I shoot are done with the 90D now, the AF is not as good as my 7DII or 5DIV but the cropability is there and since I normally am below 4,000 iso the noise is easy to deal with. I only use my 7DII for shooting birds on my feeders in the side yard about 12 feet away. The 5DIV when the light is really bad and for all my other shooting. My Concern with the R5 in crop mode is it becomes 17 or 20 mp (17 I think) and that makes it tough to crop it as tight as I can with my 90D which has an equivalent 83mp if it were a FF

The R5 advantage for me is not maximum IQ vs the 90D for focal-length-limited work; it is the ability to get a lot more images in focus in some situations in which the 90D AF would get lost. You need an extra 1.36x focal length or an extra 1.4x TC to get as many pixels on subject with the R5. You can do that up to a point, but the R5 does not like many two-TC combos, not for optical reasons, but because the electronics go haywire. One theory I have is that Canon tries to figure out what is connected to the mount, and restrict current to only what the body thinks is needed. TCs that do not report, therefore, may cause electrical problems, especially if they draw more current than average or cause some noise in the power lines that cause communication, IS, or AF failure with marginal power supply.

So yes, while the R5 can potentially AF with lots of teleconversion with a stack, not all TC stacks will work. Ironically, AF and IS work when I use 400/4DO II -> 2xIII -> Kenko 3x for 2400/24, but they don't when I replace the 3x with the Kenko Pro 300 DG 1.4x.

John Sheehy wrote in post #19208549
The R5 advantage for me is not maximum IQ vs the 90D for focal-length-limited work; it is the ability to get a lot more images in focus in some situations in which the 90D AF would get lost. You need an extra 1.36x focal length or an extra 1.4x TC to get as many pixels on subject with the R5. You can do that up to a point, but the R5 does not like many two-TC combos, not for optical reasons, but because the electronics go haywire. One theory I have is that Canon tries to figure out what is connected to the mount, and restrict current to only what the body thinks is needed. TCs that do not report, therefore, may cause electrical problems, specially if they draw more current than average or cause some noise in the power lines that cause communication, IS, or AF failure.

So yes, while the R5 can potentially AF with lots of teleconversion with a stack, not all TC stacks will work. Ironically, AF and IS work when I use 400/4DO II -> 2xIII -> Kenko 3x for 2400/24, but doesn't when I replace the 3x with the 1.4x.

Is it also possible that third party TC's don't report back to the camera properly? Only Canon really knows the commands sent to the lenses and the correct responses. This isn't a dispute of your hypotheses, but an addition to them.

Interesting that I went out today at lunchtime with my 90D and 5DIV and my 150-600C to my gun club to test the focus on the 90D and compare it to the 5DIV for the type of cropping usually do when shooting BIF. Sometimes the 90D does lose focus on a bird especially at a distance against a cluttered background. Most of my BIF are at 200 yards and cluttered backgrounds. These shots were off a beanbag on my car window (32 degrees and 20 mph winds so I stayed in the car) and the fisherman was 200 yards away across the clubs pond. The first shot is the 5DIV and 3 crops each tighter the two tightest are what I often crop to, shot at 600mm. the second shot is the 90D at 600mm (960mm with the 1.6) the final was done with the 90D at 380 so it ended up being 600mm with the 1.6 just because.

5DIV 2

90D @ 400 (387)

part 2 90D

90D at 600mm

90D 600 part 2

The 5DIV just cannot crop as tight as the 90D, I only with the 90D had the AF of my 7DII or the 5DIV, where you and do single point on AF-ON and full zone on *

a R7 with the AF of the R6 or R5 and the 32.5mp would be great

As I posted in another thread I have decided to shelve the R5 idea at least for now. If the R7 comes out and it is 30mp or high I will snap it up, if it is only 20 I would probably not get one.

For now I am going to stick with my 90D for BIF and birds etc at longer distances and the 5DIV for everything else. My 7DII will be use for multicamera setups when I am shooting around my hummingbird feeders with remote control.

NOW just have to wait and see if they come out with the R7....

rumors still say late 2021

Jeff USN Photog 72-76 wrote in post #19209562
As I posted in another thread I have decided to shelve the R5 idea at least for now. If the R7 comes out and it is 30mp or high I will snap it up, if it is only 20 I would probably not get one.

For now I am going to stick with my 90D for BIF and birds etc at longer distances and the 5DIV for everything else. My 7DII will be use for multicamera setups when I am shooting around my hummingbird feeders with remote control.

NOW just have to wait and see if they come out with the R7....

rumors still say late 2021

Jeff, I hope you're right. I'm quickly losing hope that there will be an R7. When I got my 7D Mark II in early 2018, there were rumors that a Mark III was going to be released that same year. The Mark II is now more than six years old. If Canon really saw the high-end APS-C market as worth their while, wouldn't they have done something by now? The 90D is a fine camera, but I don't buy into the view that it was meant to be the 7DII successor.

<EDIT> Just to clarify where I stand, if Canon actually does announce an R7 that's truly a worthy successor to the 7D Mark II and peer to the R6, I will go charging into Ace Photo in Ashburn, VA, on the first day of preorders, howling and waving my credit card in the air like Yosemite Sam with his six-shooters!

mcoren wrote in post #19209750
Jeff, I hope you're right. I'm quickly losing hope that there will be an R7. When I got my 7D Mark II in early 2018, there were rumors that a Mark III was going to be released that same year. The Mark II is now more than six years old. If Canon really saw the high-end APS-C market as worth their while, wouldn't they have done something by now? The 90D is a fine camera, but I don't buy into the view that it was meant to be the 7DII successor.

<EDIT> Just to clarify where I stand, if Canon actually does announce an R7 that's truly a worthy successor to the 7D Mark II and peer to the R6, I will go charging into Ace Photo in Ashburn, VA, on the first day of preorders, howling and waving my credit card in the air like Yosemite Sam with his six-shooters!

YOU AND ME BOTH!!!!

^^^^Make that THREE!

Lou

I shoot High School football at night with a 7DMKII and a 70-200mm 2.8. I have enough saved up for an R6 but can't afford the loss in focal length. I know the higher ISO capability of the R6 is tremendous but the lens choices for shooting under the lights are limited! I will buy a 100-500mm but at 7.1 I am not convinced the R6 will be clean enough shooting at such a high ISO. Not even sure what it would require! Just waiting!