Speed of SD card

Discussion in 'Filmmaking' started by Rider, Oct 14, 2010.

  1. Rider

    Rider Mu-43 Regular

    139
    Oct 14, 2010
    Hi,

    I am new; just bought an E-PL1. I have a bunch of questions.

    I have a pair of 16GB Class 4 cards that I used with my DSLR. Oly says they recommend Class 6 for video. Will Class 4 lead to dropped frames without warning, or is it relatively safe?
     
  2. Brianetta

    Brianetta Mu-43 Veteran

    438
    Sep 5, 2010
    North East England
    Real Name:
    Brian Ronald
    Can't speak for a class 4, but at full resolution my class 2 Sandisk started to lose frames after about five or six minutes. No warning was given; I only found out that frames had been dropped upon reviewing the footage when I got home.
     
  3. pxpaulx

    pxpaulx Mu-43 All-Pro Charter Member

    Jan 19, 2010
    Midwest
    Real Name:
    Paul
    Class 4 should be sufficient for video, so I would at least wait and try before shelling out for a class 6 card (or cards). The E-pl1 in general is not a speed demon when it comes to CPU processing, and therefore does not generally take advantage of the speed of a class 6 card in other areas (like writing images to the card) either. Try it out, and then give us a report!
     
  4. Bill

    Bill Mu-43 Regular Charter Member

    176
    Apr 15, 2009
    Brisbane, Australia
    Real Name:
    Bill (really)
    I rarely do video, but I find the faster Lexar (class 10's) cards speed up the multiple exposure and bracketing functions.

    Also, I stick to 8 gig cards because I don't want too many eggs in one basket.
     
  5. pxpaulx

    pxpaulx Mu-43 All-Pro Charter Member

    Jan 19, 2010
    Midwest
    Real Name:
    Paul
    The gf1 is a faster camera though, and would therefore have benefit from a faster card. With the e-pl1, I have not noticed a difference between my class 4 or 6 cards.
     
  6. VisualFX

    VisualFX Mu-43 Regular

    38
    Aug 20, 2010
    You may be okay with your class 4 cards, but you would have to try it out. I initially bought some cheap class 6 cards for my E-PL1 (Patriot and some other brand), but I was getting corrupt photos. About 1-in-14 photos were corrupted. So I then bought these Panasonic Class 10 SD cards and it solved my problem, and it is fairly fast. It is rated 22mb/s. Plus when I put it in my card reader, it is really fast to download the photos off of it.

    This card is made in Japan if that matters to you. Panasonic claims it has some sort of power-failure protection too. If battery goes out while writing a photo, all of your previous photos will still be in-tact.

    Panasonic 8GB SDHC Memory Card Class 10 in Secure Digital Memory Cards at JR.com

    Amazon.com: Panasonic 8 GB High Speed 22MB/s SDHC Class 10 Memory Card RP-SDW08GU1K: Electronics
     
  7. Rider

    Rider Mu-43 Regular

    139
    Oct 14, 2010
    I tested the Class 4 card, and it worked flawlessly with video capture.
     
    • Like Like x 2
  8. cadmunky

    cadmunky New to Mu-43

    8
    Mar 12, 2010
    I've been using a Class 10 Panasonic card for 4 months now and its fantastic! It really comes into its own with continuous shooting JPEG+RAW. If you look around the cost difference with others cards is surprisingly minimal!
     
  9. deirdre

    deirdre Mu-43 Top Veteran

    661
    Aug 9, 2010
    I use Class 10 Panasonic cards.
     
  10. walt_tbay

    walt_tbay Mu-43 Veteran

    322
    Aug 24, 2010
    Ontario, Canada
    I started using Panasonic Class 10 cards too because I like taking multiple exposure shots for HDR processing purposes. My GF1 is usually set up to take 7 exposures at 1/3 increments and the Class 6 cards seem to stall the camera at around shot 5. The performance difference between Class 6 and 10 is really noticeable. The 16 gig cards are often on sale for Can$99.
     
  11. eternallurker

    eternallurker Mu-43 Rookie

    24
    Dec 22, 2010
    About this fragmentation, maybe someone can help me.

    I have a 16g class 10 Transcend memory card. The other day it "crapped" out on me, skipping a lot of frames while recording some test video. (EPL1).

    The card was almost full at the time, and the next video I shot gave me a "CARD FULL" message after just a few seconds.

    Now I have formatted the card, and have not had this problem again.

    Is it safe to assume, that fragmentation could be the cause?

    Or is it somewhat common to loose frames on the last few minutes of the Cards?
     
  12. OPSSam

    OPSSam Mu-43 Regular

    134
    Dec 18, 2010
    NC
    My sandisk class 6 (4gb) has not failed me and my E-PL1 yet. I have had first hand experience with transcend and patriot cards, and let's just say it was not a good experience (at least I wasn't the one that bought them).
     
  13. eternallurker

    eternallurker Mu-43 Rookie

    24
    Dec 22, 2010
    Update for whomever might interest.
    I'm getting these dropped frames when, and only when, I do autofocus while recording video on HD.
    Luckily for the controlled enviroment where I'm going to use the EPL1, this is not a problem.

    I've done some testing with 3 different cards. A transcend class 10 and two transcend class 6, and they all do the same. Sadly I don't have any other brand of cards to do some testing. But it would be great if others could do this test with different types of cards.
     
  14. qball

    qball Mu-43 Regular

    170
    Jun 19, 2010
    Anyone know the limitations of the GF1 as far as SDHC memory size? 16GB, 32GB????
     
  15. Grant

    Grant Mu-43 Veteran

    The operating manual states (Page 25) SD Memory Card (8MB - 2GB) - SDHC Memory Card (4GB - 32GB)
     
  16. stratokaster

    stratokaster Mu-43 All-Pro

    Jan 4, 2011
    Kyiv, Ukraine
    Real Name:
    Pavel
    I don't recommend Transcend cards... I bought two 16 GB Transcend Class 10 SDHC cards and they both failed in a month. Maybe they were fakes, but still I'd recommend other options.
     
  17. F1L1P

    F1L1P Mu-43 Veteran Charter Member

    388
    Jan 2, 2010
    Europe
    using class 6 and class 10 in pana G1, and there is a difference. class 10 being of course faster in use.
     
  18. raldi

    raldi New to Mu-43

    1
    Mar 25, 2011
    I uses Sandisk SDHC Card 16GB class 4 on my E-PL1 and when i recording a HD video format,when it reaches about 600MB or about around 2 minutes,the record suddenly stop,on screen it still had a recording logo on top left corner,but on the time line (right down corner) it shows just "00:00",and hang..i had to push recording button to stop this strange screen..whe i start recording again,it happens again and again.. anyone had a problem like me?is it the speed of the SD Card makes E-PL1 only can write HD Video around 2 minutes length?or may a 16GB capacity on a class 4 makes this look "overloaded"?

    i had 8GB Kingston class 4 SDHC and recorded well..

    thanks for any help and information :)
     
  19. rpress

    rpress Mu-43 Regular

    76
    Jun 11, 2010
    GF1 Performance

    I don't do video, but I do like the fast cards for high speed shooting or to reduce the delay from shooting to preview on my GF1.

    I tested my previous card at 13 MB/s write on my PC, and I recently bought a Sandisk Extreme III card that tested at 23 MB/s. I saw a small increase in speed, but not much. So I think that anything faster than 15 MB/s or so is limited by the speed of the GF1.
     
  20. LeeOsenton

    LeeOsenton Mu-43 Button Clicker

    293
    Jun 25, 2010
    Hayes, Virginia, U.S.A.
    Real Name:
    Lee Osenton
    I am using a 16GB Lexar Class 4 in my E-PL1 and have not had a problem with video.

    Lee