Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS General Gear Talk Data Storage, Memory Cards & Backup 
Thread started 24 Jun 2015 (Wednesday) 06:27
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Recording to dual CF and SD cards slows 5d mk3 down?

 
Van ­ Gogh
Goldmember
Avatar
1,317 posts
Gallery: 118 photos
Best ofs: 5
Likes: 381
Joined Jun 2013
Location: Toronto, Canada
     
Jun 24, 2015 06:27 |  #1

Hi guys,

Just got a 5D mk3 recently and I was watching one video that said "having a fast CF card and a slow SD card simultaneously in the mk3 will slow CF down to SD's speed".
This doesn't make sense to me. Yes I I chose the option to record to "Rec. to multiple" or "Rec. separately" than yes, it could slow down as it would record to both cards.

But if I have both cards in camera and choose 'Standard" or "Auto switch card" options and select Card 1 (CF) for "Record/play", wouldn't it mean it is recording to only CF card and hence why would it slow down the camera, or it wouldn't?

Any help really appreciated.


Camera - 2x5Dmk3, C100 mkii, 70D, 60D
Lenses - 24-70mm f2.8L II, 70-200mm f2.8L IS ii, 85mm f1.2L II, 35mm f1.4 ART, 100mm f/2.8L Macro IS
Lighting - 3 x 600EX RT's, Printer - Epson 3880

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
RMH
Goldmember
Avatar
1,000 posts
Likes: 24
Joined Jan 2011
Location: Canterbury
     
Jun 24, 2015 10:59 |  #2

I suspect it's just referring to writing new files to both cards simultaneously; if it needs to write to both cards it certainly can't clear an image out of the buffer until it's written to the slowest card, and it probably only works on one image at a time, so for each image it's going to have to wait until the slower card is done before it can move onto writing the next image to the cards.



All the stuff I've owned at one time or another

  
  LOG IN TO REPLY
joeblack2022
Goldmember
3,005 posts
Likes: 5
Joined Sep 2011
Location: The Great White North
     
Jun 24, 2015 11:02 |  #3

Unfortunately Canon messed up with the SD card slot in the 5D3.

http://blog.jeffcable.​com …-put-sd-card-in-your.html (external link)


Joel

  
  LOG IN TO REPLY
RMH
Goldmember
Avatar
1,000 posts
Likes: 24
Joined Jan 2011
Location: Canterbury
Post edited over 4 years ago by RMH.
     
Jun 24, 2015 11:11 |  #4

yeah, I never really understood it. Why would i want to run out and buy slow SD cards when I already own CF cards? They did the same thing with the 1D series before the 1DX. I don't know if it's to be 'flexible', but I don't ask to borrow other peoples memory cards, so I don't need that flexibility.



All the stuff I've owned at one time or another

  
  LOG IN TO REPLY
john5189
Senior Member
598 posts
Likes: 6
Joined Dec 2008
     
Jun 24, 2015 11:14 |  #5

YES it is real mucked up. For security I write to both cards (RAW+ JPEG) and a a 7+ frame burst can take 5+ seconds to write to the SD card. Never mind the FPS can drop to about 3.


Wedding Photography in Herefordshire.  (external link)

  
  LOG IN TO REPLY
joeblack2022
Goldmember
3,005 posts
Likes: 5
Joined Sep 2011
Location: The Great White North
     
Jun 24, 2015 11:24 |  #6

RMH wrote in post #17609088 (external link)
yeah, I never really understood it. Why would i want to run out and buy slow SD cards when I already own CF cards? They did the same thing with the 1D series before the 1DX. I don't know if it's to be 'flexible', but I don't ask to borrow other peoples memory cards, so I don't need that flexibility.

Not sure what your train of thought is but there are photographers who need the redundancy, it's just unfortunate that Canon did not see fit to equip the 1D series with dual CF slots or at least make the SD card slot support higher speeds.


Joel

  
  LOG IN TO REPLY
RMH
Goldmember
Avatar
1,000 posts
Likes: 24
Joined Jan 2011
Location: Canterbury
Post edited over 4 years ago by RMH.
     
Jun 24, 2015 11:36 as a reply to  @ joeblack2022's post |  #7

no the redundancy is great, just makes no sense to add a SD card slot to the 5D when many of those upgrading to it (from 5D I/II, 7D, etc) probably have multiple CF cards and no SD cards. They finally got that right in the 1DX at least.



All the stuff I've owned at one time or another

  
  LOG IN TO REPLY
Van ­ Gogh
THREAD ­ STARTER
Goldmember
Avatar
1,317 posts
Gallery: 118 photos
Best ofs: 5
Likes: 381
Joined Jun 2013
Location: Toronto, Canada
     
Jun 24, 2015 15:35 |  #8

Ok guys I am a little confused.
Yes it is clear if the camera If the camera is instructed to write to both cards simultaneously than obviously the slower card will slow the overall burst rates and buffer clearing rates.
However, I like the idea of using 'Auto switch function", meaning the camera will write to SD card only when and if my CF card is filled completely.
Now my question is using it that way should not slow the camera down although there are 2 cards inserted right? (Because it is only writing to CF card).


Camera - 2x5Dmk3, C100 mkii, 70D, 60D
Lenses - 24-70mm f2.8L II, 70-200mm f2.8L IS ii, 85mm f1.2L II, 35mm f1.4 ART, 100mm f/2.8L Macro IS
Lighting - 3 x 600EX RT's, Printer - Epson 3880

  
  LOG IN TO REPLY
davinci953
Senior Member
283 posts
Likes: 175
Joined Dec 2011
     
Jun 24, 2015 15:53 |  #9

Van Gogh wrote in post #17609404 (external link)
Ok guys I am a little confused.
Yes it is clear if the camera If the camera is instructed to write to both cards simultaneously than obviously the slower card will slow the overall burst rates and buffer clearing rates.
However, I like the idea of using 'Auto switch function", meaning the camera will write to SD card only when and if my CF card is filled completely.
Now my question is using it that way should not slow the camera down although there are 2 cards inserted right? (Because it is only writing to CF card).

No, that shouldn't slow the camera. That's how I have the camera set.

There's been a lot of confusion about this issue in some part, I think, to the Jeff Cable blog post that gets recirculated where it gives the impression that just having the SD card in the slot will slow down the write speed. If you're not writing to the SD card, having the card in the camera WILL NOT slow It down.




  
  LOG IN TO REPLY
Van ­ Gogh
THREAD ­ STARTER
Goldmember
Avatar
1,317 posts
Gallery: 118 photos
Best ofs: 5
Likes: 381
Joined Jun 2013
Location: Toronto, Canada
     
Jun 24, 2015 17:14 |  #10

davinci953 wrote in post #17609430 (external link)
No, that shouldn't slow the camera. That's how I have the camera set.

There's been a lot of confusion about this issue in some part, I think, to the Jeff Cable blog post that gets recirculated where it gives the impression that just having the SD card in the slot will slow down the write speed. If you're not writing to the SD card, having the card in the camera WILL NOT slow It down.

That is what my own testing suggested as well.
Just having the SD in does not slow camera down unless I am writing to it.


Camera - 2x5Dmk3, C100 mkii, 70D, 60D
Lenses - 24-70mm f2.8L II, 70-200mm f2.8L IS ii, 85mm f1.2L II, 35mm f1.4 ART, 100mm f/2.8L Macro IS
Lighting - 3 x 600EX RT's, Printer - Epson 3880

  
  LOG IN TO REPLY
davinci953
Senior Member
283 posts
Likes: 175
Joined Dec 2011
     
Jun 24, 2015 17:47 |  #11

Van Gogh wrote in post #17609533 (external link)
That is what my own testing suggested as well.
Just having the SD in does not slow camera down unless I am writing to it.

That's been my experience as well. I don't know if Canon added UHS 1 support to the 7D Mark II, or if the dual card design is the same as the 5D Mark III.




  
  LOG IN TO REPLY
110yd
Senior Member
774 posts
Likes: 23
Joined Jan 2005
     
Jun 24, 2015 21:08 |  #12

If you want SPEED, then avoid putting a SD card in the 5D MK III. Much has been written about
why Canon would put an SD card interface which does NOT support the high speed standard (called UHS – for Ultra High Speed)

Regards,

110yd




  
  LOG IN TO REPLY
davinci953
Senior Member
283 posts
Likes: 175
Joined Dec 2011
     
Jun 25, 2015 10:48 |  #13

110yd wrote in post #17609701 (external link)
If you want SPEED, then avoid putting a SD card in the 5D MK III. Much has been written about
why Canon would put an SD card interface which does NOT support the high speed standard (called UHS – for Ultra High Speed)

Regards,

110yd

Just having the card in the camera doesn't slow it down. It's only when you're WRITING to the card. If you're recording to both cards, then yes, it will slow down the camera. If you're recording only to the CF card, and the SD card is just sitting in the camera, it will NOT slow down the camera.

I wish people would stop saying don't put a SD card in the camera. Jeff Cable clarified his initial post:

http://www.canonwatch.​com …with-the-eos-5d-mark-iii/ (external link)




  
  LOG IN TO REPLY
CyberDyneSystems
Admin (type T-2000)
Avatar
49,708 posts
Gallery: 160 photos
Likes: 6357
Joined Apr 2003
Location: Rhode Island USA
Post edited over 4 years ago by CyberDyneSystems. (3 edits in all)
     
Jun 25, 2015 11:11 |  #14

Van Gogh wrote in post #17609404 (external link)
Ok guys I am a little confused.
Yes it is clear if the camera If the camera is instructed to write to both cards simultaneously than obviously the slower card will slow the overall burst rates and buffer clearing rates.
However, I like the idea of using 'Auto switch function", meaning the camera will write to SD card only when and if my CF card is filled completely.
Now my question is using it that way should not slow the camera down although there are 2 cards inserted right? (Because it is only writing to CF card).

It will NOT slow the camera down until you start to write to the SD card.
There is no reason not to have the SD card in there waiting for when you run out of CF.

I've never heard anyone say that installing an SD card would slow the camera down before this thread. The idea is ludichristmas!


This is part of why it's good to use more than one function of the multiple cards. When redundancy is paramount, write to both cards.

when speed and catching the action is important, use autoswitch to make sure you don't miss a shot changing cards.


GEAR LIST
CDS' HOT LINKS
Jake Hegnauer Photography (external link)

  
  LOG IN TO REPLY
CyberDyneSystems
Admin (type T-2000)
Avatar
49,708 posts
Gallery: 160 photos
Likes: 6357
Joined Apr 2003
Location: Rhode Island USA
     
Jun 25, 2015 11:16 |  #15

Hey, this thread is for the Old masters, we have Davinci and Van Gogh!!!


GEAR LIST
CDS' HOT LINKS
Jake Hegnauer Photography (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

6,411 views & 2 likes for this thread
Recording to dual CF and SD cards slows 5d mk3 down?
FORUMS General Gear Talk Data Storage, Memory Cards & Backup 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Jpcullen
1066 guests, 234 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.