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    #1

    5D3 and Memory Cards

    OK you 5D3 owners need some info/advice re memory cards.

    As I knew the camera can take both CF and SD cards thought I'd do a bit of research on cards and speeds. Got to say my brain is hurting now!!

    Most interesting thing I've read (can't comment on accuracy) is that the camera will default to the slowest card inserted and being used with implication that SD are slower than CF. Thinks that's right and I've explained it correctly.

    Apparently for continuous burst SD can limit speed and some people say don't insert or don't directly write to SD.

    Seem some people only use SD as an in camera route to back up the images on the CF card and then reformat the CF card. Others have camera set to save RAW to CF and JPEG to SD.

    Anyone want to comment? Think I'll go for a beer and wait for some info from others!!
    Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
    https://www.flickr.com/photos/16830751@N03/
    Tags: None
    #2
    Re: 5D3 and Memory Cards

    Yes, that is correct.

    We ran an article on this in the July-September 2012 issue of EOS magazine, page 76.
    Robert
    robert@eos-magazine.com

    Comment

      #3
      Re: 5D3 and Memory Cards

      Hmm I've never heard that one. I use the 400X UDMA 7 cards I bought for my 7D and I have a class10 SD card too. I never use them at the same time because you end up with double the data on import and I don't see the point in shooting RAW and JPG.

      There's an old term in computing though. You're only as fast as your slowest component so maybe that rings true here too. Never experienced a slow down with the 5D3. Had terrible slowness on the 1D3 though.
      Fuji X-T1 | 1D IV
      www.campsie.photography

      Comment

        #4
        Re: 5D3 and Memory Cards

        Well it's interesting seems to me that shooting RAW to CF seems best option.

        Then maybe when travelling use the in camera transfer to SD as a storage solution.

        As a matter of interest what's the size of RAW files on 5D3?

        Yep, was certainly case in computing, at one time mixing memory modules meant speed was limited to slowest and 2 drives on one ribbon cable meant slowest would limit data speed.
        Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
        https://www.flickr.com/photos/16830751@N03/

        Comment

          #5
          Re: 5D3 and Memory Cards

          There was sort of a conversation on memory cards in the 5D Mark III here...
          5D Mk 3 Memory Card Advice - EOS magazine forum
          http://www.eos-magazine-forum.com/showthread.php?24617-5D-Mk-3-Memory-Card-Advice
          All about Canon digital EOS cameras.


          As Paul has said you will be constrained by the slowest part of the system, so buying very cheap and slow memory cards will be a bottle neck, although maybe mainly an issue during burst shooting or fast shooting.

          In a friends 5D Mark II I've seen buffering occur when saving images due to a slow card, it can take a few seconds to make an image available to view after shooting.
          To prevent any buffering issues I decided to go for fast cards, my SD are 95MB/s and my CF are 160MB/s.
          Maybe those speeds are higher than needed, but I am pleased with performance and don't get any buffering delays.

          I use both cards to record the same image, and treat the CF as a backup which only gets formatted after I've verified the SD card images have transferred ok and without issue.
          I use the SD card to transfer as I can use the SD card slot on my iMac, I appreciate the CF may be quicker but don't want an external card reader at the moment.

          In use I've seen no speed issues or concerns. Currently I shoot in RAW+JPG, but am going to switch to just RAW as I mainly just end up deleting the JPG's as unwanted anyway, and I can create JPG's from RAW easily enough.
          The file sizes of my RAW tend to be 24-29MB from what I can see of a quick look through some recent files.
          Andy
          _____________________________
          Canon EOS 5D MarkIV, 11-24mm f4, 24-70mm f2.8 II, 24-105mm f4, 70-200mm f2.8 IS II USM, 100-400mm f4.5-5.6 IS II USM, 100mm Macro, 50mm f1.4, Speedlite 600EX-RT, Manfrotto tripod
          http://www.flickr.com/photos/cyberdavis/

          Comment

            #6
            Re: 5D3 and Memory Cards

            Thanks for comments. Done a raft more reading and does seem that SD slot is limited in speed (apparently max is 20mb/sec) and under certain circumstances this can cause a slow down of writing of files, when writing to both cards i.e. RAW to CF and JPEG to SD.

            Lots of discussion on this topic on the web and I'm guessing for a lot of users this won't be an issue.
            Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
            https://www.flickr.com/photos/16830751@N03/

            Comment

              #7
              Re: 5D3 and Memory Cards

              This is all new to me, bought the 5dmk3 in Sept last year and used my Sandisk 8gb 60mb/s cards and have not been affected with buffering whilst in USA I bought a Sandisk 16gb 95mb/s card as I thought this would be better with faster write speed if ever I used video, as for the camera defaulting to the slowest card (which I did not know) I always set my camera to record to the CF card first and auto switch when full

              Alan

              Comment

                #8
                Re: 5D3 and Memory Cards

                That's interesting Alan. Think you'll find that unless you're writing to both at same time and have filled/got close to filling the buffer this shouldn't be an issue, I'm happy to be corrected on this if its not accurate.

                Seem to recall reading that auto switch to SD doesn't rest if you remove the CF card so recording is then SD first, might have crossed over some info there so again please correct me if wrong.
                Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
                https://www.flickr.com/photos/16830751@N03/

                Comment

                  #9
                  Re: 5D3 and Memory Cards

                  I always shoot in Raw and never write to both cards at the same time and after removing the CF card and loading them on to my PC i insert the card into the camera format it and switch it back to be the first card to be written to

                  Alan

                  Comment

                    #10
                    Re: 5D3 and Memory Cards

                    Think my way forward (once I get my 5D3) will be to write to CF and only use the in camera copy to SD for travelling as I have quite a few SD cards.
                    Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
                    https://www.flickr.com/photos/16830751@N03/

                    Comment

                      #11
                      Re: 5D3 and Memory Cards

                      Just done a quick test using cf card and a sd card then both together in camera.

                      Lexar Pro 800x CF Card 17 frames before it stopped, SanDisk Extreme Pro 95MB SD Card 15 frames till stopped, both cards in camera and it still managed 17 frames but it slowed right down on the final 3frames.
                      Hope that helped in someway???

                      Paul
                      EOS 1Dx, - EF 24-105L f4,- Sigma 135 f1.8 Art - EF 400L IS f2.8, - Speedlite 430EXII.
                      Freelance Sports Photographer for local Press - https://twitter.com/P_linton99

                      Comment

                        #12
                        Re: 5D3 and Memory Cards

                        Cheers Paul, if you suffer from insomnia and have some time to waste here's one of the umpteen pages of stuff on this topic

                        Just a moment...
                        http://www.canonrumors.com/forum/index.php?topic=19812.0


                        Think your quick test probably confirms that for most users it should be an issue.
                        Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
                        https://www.flickr.com/photos/16830751@N03/

                        Comment

                          #13
                          Re: 5D3 and Memory Cards

                          I only ever use CF cards in my 5D3, for the very reason stated above.

                          Yep, SD cards are cheaper, but having paid the price of a new 5D3, I'm happy to provide it with the faster CF cards.

                          Otherwise, its a bit like buying a Ferrari, and putting 2 Star petrol in it.

                          Dave
                          Dave

                          Website:- https://davesimaging.wixsite.com/mysite

                          Comment

                            #14
                            Re: 5D3 and Memory Cards

                            Given the information out there that seems a reasonable point Dave.
                            Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
                            https://www.flickr.com/photos/16830751@N03/

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