5DS - CF or SD?

[Jeremy Roussak]

I've read this thread with interest. Having just acquired a 5DS, I'm curious: should I use the a CF or an SD as my primary card? I'm not planning to shoot to both, but to switch to the secondary when the primary is full.

Does it make any difference?

Jeremy

[Slobodan Blagojevic]

Are you interested in wi-fi? CF slot can be used for that. I started a thread here, but nobody replied

[dwswager]

I've read this thread with interest. Having just acquired a 5DS, I'm curious: should I use the a CF or an SD as my primary card? I'm not planning to shoot to both, but to switch to the secondary when the primary is full.

Does it make any difference?

Jeremy

It generally doesn't make a difference.  I shoot Nikon, but when I shoot sports and need speed to flush the buffer, I shoot to CF.  CF is ultimately more durable as well.  If I'm shooting JPG for non critical work I shoot to SD because my laptop has a slot so I don't have to have an adapter with me or putz with it.

The fastest CF is still faster than the fastest SD, so that is really the difference.

[nemophoto]

At this point, CF cards are still faster with the 5Ds. But it depends on what you own. If you already a bunch of fast SD cards, go with them. For me, I have several hundred GB of CF cards, so I have no desire to switch.

Canon 5Ds SD and CF card tests -  this is a comprehensive link to CF and SD cards tested in the Canon 5Ds.

[razrblck]

If you want some numbers, here are some speed tests with many cards.

It does make a difference depending on usage. If you take a couple of frames every minute or so you won't notice a difference, but if you shoot a lot (say one frame every two seconds) the faster card will help keep your buffer flushed and ready.