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Thread started 14 Jul 2010 (Wednesday) 15:06
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Why do higher end cameras use CF cards?

 
Namerifrats
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Jul 14, 2010 15:06 |  #1

Been looking at cameras for a couple weeks now, planning to upgrade in the next few months hopefully. Wanting to go from an XSi to either a 7D or 5D MkII. Noticed these use Compact Flash cards instead of SD. I have several SD cards and have never had one to go bad. Why are these higher end cameras using these big bulky CF cards? From what Ive seen, they cost way more per GB than an SD of the same size.


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krb
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Jul 14, 2010 15:07 |  #2

CF cards are faster and are generally available in larger capacities.


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Namerifrats
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Jul 14, 2010 15:16 as a reply to  @ krb's post |  #3

Hmmm, locally I saw them only up to 8GB. Just checked online and saw larger capacities. Cost way more though. I also see different speeds. Seems like on SD, the one's I use are all pretty fast. I searched before posting this, and found another thread. Mostly just people like SD or they like CF. Seems alot o people complained about losing the SD cards due to size or bending them. Never been an issue for me, guess I'm just careful with my stuff. I was just curious didn't know if it was due to a hardware reason or what.


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Jul 14, 2010 15:18 |  #4
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CF cards can go up to 90mb/s, SD cards are just slower.


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Namerifrats
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Jul 14, 2010 15:19 |  #5

nekrosoft13 wrote in post #10536331 (external link)
CF cards can go up to 90mb/s, SD cards are just slower.

I was just looking at that. Guess thats good for shooting 20+ frames on multi-shot. $100 for a 4GB card that fast though....


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Jul 14, 2010 15:19 as a reply to  @ krb's post |  #6

Big and bulky CF cards

Wow! I have never considered CF cards to be big an bulky. I just marvel at the capacity and life expectancy of these units!

Of course, I am a guy who started in professional photography using 4x5" cut film with film holders and a Speed Graphic camera. At the weight and bulk of a single film holder with two sheets (TWO EXPOSURES) of film, I could carry about twenty or more CF cards with multi-thousands of exposures available...


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Jul 14, 2010 15:22 as a reply to  @ Namerifrats's post |  #7

If you go look at the Sandisk home page, the fastest SD I saw was 30MB transfer speed. For CF cards you can 60MB (Extreme series) and 90MB (Extreme Pro).




  
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Namerifrats
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Jul 14, 2010 15:26 as a reply to  @ MCAsan's post |  #8

Nice! That makes alot more sense, for speed. I don't take many shots on auto, mainly birds. Wanting to shoot some airshows and maybe a couple of drag races. I guess something in the 60mb range might be fast enough for a quick series of 10 or so RAW shots. That sound about right? Just trying to "gauge" the write speed on these.


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Jul 14, 2010 15:27 |  #9

I accidentally carried an unprotected CF card in my pocket for a few days. It was mixed with some change, and other unfriendly pocket chaff, The card looked like hell, but functioned perfectly. The delicate build of an SD card doesnt inspire the same confidence.




  
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bobbyz
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Jul 14, 2010 15:29 |  #10

gonzogolf wrote in post #10536397 (external link)
The delicate build of an SD card doesnt inspire the same confidence.

Agree.


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Jon, ­ The ­ Elder
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Jul 14, 2010 15:36 as a reply to  @ bobbyz's post |  #11

Yup, me too. I have CF cards that I used with my old Kodak 35 (1999) and they still function prefectly.


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Jul 14, 2010 15:49 |  #12

I miss using CF from a form factor point of view (Insurance claim moved me from a 400d to 450d).
The only advantage of SD over CF for me is that I can leave the card reader in my mac's express port and I also notice that many laptops have SD readers built in, but rarely CF.
I hope that CF doesn't give way to SD as I suspect it will, but we will have to go as the wind blows.




  
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Jul 14, 2010 15:57 |  #13

As they continue to put faster processors and higher frame rates, and more megapixels per photos, and better video into cameras, the gap between camera's technology needs and what the SD memory interface is capable of providing will simply continue to leave the SD behind in its deficiency. The memory card folks designed SD to be cheaper to make so their profits increase, but the offsetting 'cost' of max performance limitations is impeding its success.


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Jul 14, 2010 16:03 |  #14

AFAIK there are some high-end cameras that will use both?


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Luke ­ Cern
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Jul 14, 2010 16:12 |  #15

Simon_Gardner wrote in post #10536601 (external link)
AFAIK there are some high-end cameras that will use both?

Yes: The 1DMKII, MKIII, MKIV all accept both cards. In fact many 5D uers lament the fact that this body doesn't take SD cards.

Personally, I prefer CF cards. They are less prone to flex and split. However, CF card based bodies have pins that can bend and thats going to lead to big repair costs.

Swiings and roundabouts! I think it makes sense for a body to take both. Then you are more likely to be able to use one type if a fault develops on your other card or slot during a shoot.


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Why do higher end cameras use CF cards?
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