Update: The Canon EOS R3 will be officially announced on June 29th

I would not consider the M line competing with the FF line. It is a complementary line for specific users, little overlap.

As an example, a 5DIV user shooting a wedding with a few EF lenses could instead be using an R5 with the RF version of those lenses. Canon wants to eliminate this overlap.
Neuro's original post was comparing APS-C DLSRs with the APS-C M series.

For full frame, Canon has had competition between the EOS R and 5D for coming up to 3 years now and the RP vs 6Dii for a bit over 2 years so far. I haven't seen much discounting for the 5Div so far so it must still be selling okay and no need to discontinue it. I recall that the 5Diii was still available for some time after the 5Div was released as well

In addition to the 2 scenarios you mention 5Div+EF and R5+RF there is the normal transition option of R5+EF. I think that there were very few R5 buyers that immediately went for all RF lenses not least of which were the gaps in the RF lens lineup that EF fill nicely.

Canon doesn't want to eliminate the overlap. They want existing EF lens users to leverage their existing investment and then move to RF lenses when they feel the time is right based on improved specifications: up to 8 stops of IBIS, sharpness, focal length width (RF15-35mm/2.8, RF14-35/4, RF100-500mm), extending design for compact storage and reduced weight in some cases, improved minimum focus length (RF100 macro, etc).

My EF16-35mm/4 is my most used lens and used in difficult circumstances with no problems but I won't upgrade to RF14-35mm as the filter cost alone makes it cost prohibitive. If my EF16-35mm dies EF100mm macro die or covered under insurance claim then it will be a no-brainer to go to RF.
 
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Invest in camera glass...not the camera bodies. The bodies worth drop like a hot brick over 3-5 years. Most lenses only take a 20% hit over their life span of 10-20 years.
It might depend on the local market... Most current EF lenses go for ~60% of retail value for good examples. Previous version for about a third. The EF100-400mm ii is an exception with about 70-80% second hand price which is why I went to RF100-500mm (@ 20% off sale). EF70-200/2.8ii is about 60% of the new mark iii retail price. Very few ads for EF70-200mm/2.8iii though.

For bodies, the 5Div is selling second hand for ~60% of retail price with reasonable shutter count and a few years old. I bought mine second hand and then sold it for slightly more than I sold it for!

The market for EF lenses is obviously a bit saturated due to people migrating to RF. This will depress their prices permanently but their performance will continue to be excellent for many years to come.

It would be tough to decide which OEM/mirror v mirrorless to choose from if I was to start a camera kit from scratch now. From a pure cost perspective, second hand Canon DLSR + EF lenses would make good financial sense. Sony's marketing machine (including fanbois) would be hard to ignore though.
 
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2Cents

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The R1 may well be a slower shooting high MP studio camera rather than a sports camera. So the right choice may depend on your type of photography.
I shoot a wide variety of things including quite a bit of video. I also have a R5 but as my collection of RF glass grows I'm using the 1DX mkiii less often. This 1D durability in a mirrorless camera has my attention also. Durability is important when spending this much money. Assuming we're talking $5k+
 
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Maybe your first sentence is sarcastic? I had a full FD system, from 20mm to 400mm all F/2.8 or faster. Did the switch to EFi hurt? Yes. Was I able to sell most of them for something? Yes. Was the EOS system far superior? Yes. I believe there was an FD to EF adapter available for CPS members. I remember researching it. I think it was a 1.3 teleconverter. I never saw one in the flesh.

I think that the functionallity of EF lens on the RF mount via the adapter is sensational. It's nothing like as traumatic as the FD to EF switch.

I think you undermine you first point when you say "no manufacturer that can afford to run two lines of 80+ lens systems."
I don’t remember an FD to EF converter. My point was that Canon is moving to RF, and phasing out of EF, which is a very expensive proposition. They need to encourage as many photographers as possible to make the switch. Making more EF cameras discourages the switch.
 
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I guess Canon has poor business acumen. When they switched from FD to EF mount, they phased out of FD even though many photographers had FD cameras and could not even adapt the EF lenses.
You stated that Canon cannot run two competing systems. I pointed out that they have done just that for nearly a decade with APS/C, and a few years with FF. Having said that, I do believe they will phase out FF DSLRs and EF lenses. But not that rapidly.

Canon has to make a choice on their main camera system, and it appears with every passing day that RF is their go to system.
It depends on how you define ‘main camera system’. Canon sells far more APS-C cameras than FF cameras. They sell far more EF-S and -M lenses than EF and RF.


When they switched from FD to EF mount, they phased out of FD even though many photographers had FD cameras and could not even adapt the EF lenses.
EF offered a paradigm-shifting advantage – autofocus. Digital offered a paradigm-shifting advantage – instant image review gratification. MILCs are basically DSLRs without a mirror.
 
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You underestimate just how incredible fast the R5 overheats. On a sunny day is realy a dealbreaker.
Last shooting I got the overheat warning after 45 minutes of shooting. In this time I only recorded 15 (!) minutes of 4k60 footage. Its aweful and a real problem on location.
I used it in 4k25 after that.
Some time later I tried to record some 4k120 - after about 5 shots, each less than a minute it started blinkin again.
The 4k120 mode overheats incredible fast. Sometimes you need more than just 1 minute...
but if you add up to maybe 5 minutes record time in maybe 30 minutes on set, you get the overheat...
4k120 is great but does hit overheating limits quickly. That said, with 128GB cards, it only fits ~5 minutes of record time. More than enough for my requirements though.
In hot/summer indoor action shooting (>35C) over a couple of hours with continuous burst, my R5 did show the overheating lamp but of course the R5 didn't have any still shooting issues.

It sounds like you need an external recorder for your 4k60 and remove the cards to get longer record times. Can't use 4k120 externally though and Canon didn't include a IPB light option in the latest firmware :-(
 
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I don’t remember an FD to EF converter. My point was that Canon is moving to RF, and phasing out of EF, which is a very expensive proposition. They need to encourage as many photographers as possible to make the switch. Making more EF cameras discourages the switch.
Yes there was an official Canon FD to EOS adapter. It only worked on the white telephotos and was released in very limited numbers.

 
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MILCs are basically DSLRs without a mirror.
By definition (and pentaprism/AF sensor)! But it does enable a lot of other fun bits once a quality EVF is included and and reasonable battery life.
The 1DXiii is the interesting beast with leading class DLSR features but better AF/tracking in mirrorless mode.
 
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jam05

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No it is nothing like that at all! if I have a 10TB library why should I have to have a 20TB library instead when I have no practical use for any of that additional information.

What you are saying is we should all only be allowed to buy and shoot in 8k because it can be done, even if we have no use. for anything over 1080. What? Lol....
Dont buy it, or try to pursuade others from buying it, simply because it doesnt suit you
 
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Dont buy it, or try to pursuade others from buying it, simply because it doesnt suit you
Clearly you weren’t following the conversation. I was being told I should buy stuff that doesn’t suit me just because it’s new technology. I was simply saying why? I wasn’t trying to convince anybody to do anything other than to stop telling me what I need when I know perfectly well what that is.
 
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jam05

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Canon also said at introduction that the R5 was NOT a replacement for the 5DIV, and yet it is.

They want to protect the 1Dx3's market value by calling it the flagship, but how can a camera with an obsolete mount be considered a flagship? The R3 will beat the 1Dx3 in almost every way, so it will be the flagship until the R1 arrives.
Thats not how flagship works. A new Toyoto Camry wont replace an older Lexus as flagship merely because of its age. Value marketing doesnt work that way. The consumers perceived value isnt based on the model year.
 
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jam05

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EF mount is still superior, because it has the most native glass available by a very wide margin.

Also, for video, EF lenses will always be better than RF lenses. The EF to RF mounts with ND are a game changer, and ensure that video shooters won’t ever be buying RF glass. Much better to have an ND wheel between an EF lens and RF camera than a RF lens without the ability to control ND. Same is true for cine glass, why buy RF when you can use EF mount lenses with an ND wheel on the back end?
Because the motors and electronics will be outdated and obsolete as well as the optics
 
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jam05

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SD Express spec 8 can handle 4gb/s ie the same as 4 PCIe lanes. CFe Type A = 1GB/s, Type B = 2GB/s, Type C (much bigger ) = 4GB/s.... but Lexar's write speed for the first SD Express card is 400MB/s to be released in 2022.

So yes, SD Express can be fast but there aren't controllers and cards that will be equivalent for a long time. SD Express will also not be available locally except in specialist stores.

There are 4 officially supported OEMs for Type B but users report that the smaller Sandisk also work. Only Sony produces the CFe Type A and canon would be crazy to rely on Sony memory for a Canon flagship camera.

The question is really what speed is needed and what heat is generated? Canon RAW light options can reduce the bit rate by ~half. Sony got their 4:2:0 oversampled 8K down to 400MB/s so they didn't need CFe Type B.

So what choice is there for Canon? Dual CFe Type B would clearly work and there should be space in the R3 body for them if they wanted to include them. UHS-II SD is the only other choice but they are significantly slower than CFe B and slightly cheaper now for the same capacity and could become cheaper again over time

SD Express spec 8 can handle 4gb/s ie the same as 4 PCIe lanes. CFe Type A = 1GB/s, Type B = 2GB/s, Type C (much bigger ) = 4GB/s.... but Lexar's write speed for the first SD Express card is 400MB/s to be released in 2022.

So yes, SD Express can be fast but there aren't controllers and cards that will be equivalent for a long time. SD Express will also not be available locally except in specialist stores.

There are 4 officially supported OEMs for Type B but users report that the smaller Sandisk also work. Only Sony produces the CFe Type A and canon would be crazy to rely on Sony memory for a Canon flagship camera.

The question is really what speed is needed and what heat is generated? Canon RAW light options can reduce the bit rate by ~half. Sony got their 4:2:0 oversampled 8K down to 400MB/s so they didn't need CFe Type B.

So what choice is there for Canon? Dual CFe Type B would clearly work and there should be space in the R3 body for them if they wanted to include them. UHS-II SD is the only other choice but they are significantly slower than CFe B and slightly cheaper now for the same capacity and could become cheaper again over time.
Uh, CFexpress cards and the card readers required to transfer the data are indeed themselves "specialty" items with a unique niche set of consumers. SD card slots are consumer products. And the SDexpress cards will be backwards compatible and still as fast as CFexpress bus A
 
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jam05

R5, C70
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If this is going to be an even higher end sports camera, then frankly, the R3 was a waste of time. That development time and money could have been better spent elsewhere. If Canon is following their old model of development, as some have suggested, the the R1 will not be another sports camera.
Canon says that the 1Dx3 flagship mirrorless replacement is not the R3. Its completely a new line. Thats simple and basic as it could be.
 
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Uh, CFexpress cards and the card readers required to transfer the data are indeed themselves "specialty" items with a unique niche set of consumers. SD card slots are consumer products. And the SDexpress cards will be backwards compatible and still as fast as CFexpress bus A
Let's talk about today and for the next year or so.... We have USH-II cards and CFe A (Sony only and limited to 160GB at this time) and B (multiple OEMs, capacities and speeds). All CFe cards have faster write times than USH-II cards. Even when the Lexar SD Express card comes out next year, it will still be slower than all CFe cards.

Yes, SD Express looks interesting and potentially fast but the market will decide if becomes a standard or if it will be bypassed like USH-iii standard has been. It will be years until there are multiple OEMs making fast SD Express cards and multiple cameras using them and then we can talk about how successful SD Express will be. By that time, I believe that CFe B slot/cards will be entrenched for high end cameras simply for the video capability.

The worst case scenario of needing to buy a class 1 SD card from a supermarket in an emergency will only take a few still shots. Dual card slots should alleviate the need to cover multiple card failures. I guess that it is more likely that the tog has run out of space on the card itself. Better to format one card and the take the risk of card failure to double your space or use wifi/usb-c cable to offload

A single slot supporting SD Express, UHS-iii/UHS-ii/CFe type A cards would be a cool option though.
 
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