The Canon EOS R5 will have an SD & CFExpress slot [CR2]

[sanj]

You have an option: Buy the 1DX III and let us who are less extreme enjoy the R5 which offers options instead of extremes.

No. You are comparing 2 different systems.

 

[Peterm]

For me, the only use of 2 cards is to shoot the same data on both cards. Insurance against card failure. I have been burnt before and will work only with cameras with 2 card slots and record identical information on both. I learn lessons and do not repeat my mistakes.

Have you had a SD UHS-II card fail?

 

[slclick]

And even with a two card slot surety we have come full circle to a card failure discussion, insert Captain Picard facepalm. Or we could just segue into 'Is film dead'?

 

[sanj]

Have you had a SD UHS-II card fail?

C-Fast failed. In Jerusalem. I was shooting an assignment on 1dx2. I realized at 4 pm that the card was not working. I was to film the next day. You have no idea how I managed to get a replacement. I had to have a photographer drive from Telaviv to get me his card. It was a rough rough evening.

 

[slclick]

C-Fast failed. In Jerusalem. I was shooting an assignment on 1dx2. I realized at 4 pm that the card was not working. I was to film the next day. You have no idea how I managed to get a replacement. I had to have a photographer drive from Telaviv to get me his card. It was a rough rough evening.

You didn't need a failure to desire a system with a backup for redundancy to have peace of mind. I could use a single slot body, I don't NEED two slots but I have them and use them creatively, not for work/insurance/security. But I would not begrudge anyone who desires such a plan. It's silly to try and find holes in anyone's workflow. Do we all have to be the same? Please god no.

 

[Ozarker]

Because with the slower SD installed and the CFexpress also, max speed equals to that of the slower card. One will never get dual CFexpress bus speed. Thus one would have to remove the SD card for that CFexpress bus speed

And what a chore that is.

 

[sanj]

You didn't need a failure to desire a system with a backup for redundancy to have peace of mind. I could use a single slot body, I don't NEED two slots but I have them and use them creatively, not for work/insurance/security. But I would not begrudge anyone who desires such a plan. It's silly to try and find holes in anyone's workflow. Do we all have to be the same? Please god no.

Please point where I put down anyone's plan? Where did I find a hole in anyone's workflow? LOL.

 

[Shaun Gibbs]

Never once in using the 5D3 for almost 8 years did I have issues or even think about having mixed slots. I truly love the problems of being a stills shooter over myriad of issues video people have. We win.

Agreed.

 

[Inspired]

Is the cfexpress slot backward compatible with sd cards?

 

[Ozarker]

Is the cfexpress slot backward compatible with sd cards?

Totally different

 

[slclick]

Please point where I put down anyone's plan? Where did I find a hole in anyone's workflow? LOL.

I was agreeing with you, I understand how responses to posts are typically argumentative in nature (as yours mistakenly was) I guess I did not write my feelings clear enough to convey the meaning. I apologize.

 

[brad-man]

Stupid Canon! They should have included 2 UHS-ll slots and 2 CFExpress slots for redumbnancy...

 

[sanj]

I was agreeing with you, I understand how responses to posts are typically argumentative in nature (as yours mistakenly was) I guess I did not write my feelings clear enough to convey the meaning. I apologize.

It's ok! It is the internet...

 

[slclick]

It's ok! It is the internet...

I was being a bit sarcastic. I thought my point was crystal clear and that you should have picked up immediately that I was on your side of the discussion and just adding to it. But as with the internet you never know about context/inflection or if it is someone's 1st or other language. The problem with a keyboard? No gesticulation. Good night.

 

[MadScotsman]

C-Fast failed. In Jerusalem.

He didn’t ask you if you’ve ever had a CFast failure.

He asked you if you’ve ever had an SD failure.

 

[slclick]

Stupid Canon! They should have included 2 UHS-ll slots and 2 CFExpress slots for redumbnancy...

Maybe a grip with 8 card slots of various types! (Except Memory Stick of course) lol.

 

[Quarkcharmed]

But I understand what you are saying, and if you dont make photojournalism, sports or that wedding services, so it´s a good idea to shoot raw to both cards. We never know....

Yep, I was talking about my own workflow, my point was, everyone needs different setup, e.g. raw+jpeg or raw+raw etc.

As a side note. I haven't shot weddings but I've shot concerts and events and always used raw|raw in parallel. If I were shooting weddings, I'd also be using raw only. I never show unprocessed images to the clients and to anyone, unless it's for educational purposes. jpeg = unprocessed for me, because the genres/styles I shoot require artistic postprocessing.



Photojournalism/sports may be a different story.

 

[Antono Refa]

SD is not going to let you pull off 12/20 FPS 40+ MP/s. It's also going to greatly slow down dumping the data onto you computer.

There are UHS-II cards that can be read at 300MB/s. What drive can have data written to it at that speed? Then, nobody can post process images at 12 / 20 fps, so what does it matter anyway?

 

[Chaitanya]

Expected. Thats a safe bet with memory slots.

 

[Danglin52]

1gbs per channel write speed for CFexpress
640mbs for gen 2 UHS II Write speed. The camera will write at max speed of the slower slot if used togerher. Has been always the case.

I don't know camera architecture, but you could potentially use a dual bus and dedicated memory to deal with the slower speed of the SD card. I doubt Canon is going to release a high end camera that degrades the performance to the lower value. I have used this approach with my 1dx II (granted with a CFast card) when I wasn't carrying a laptop on the trip. I didn't use the approach that often since I didn't want to buy a lot of CFast cards for backup:

• Buy 2 128GB Cfexpress cards
• Slot 1 (Cfexpress) 128GB Write RAW
• Slot 2.(SD UHS II). 128GB Write high quality Jpeg for loading on my iPad for review
• At the end of the day insert fresh SD "backup" card and use Image Copy to create a backup of the 128GB Cfexpress card. You couldn't even use one of the slower UHS I cards if you had time and didn't want to buy the more expensive cards.