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Lenses that slow down the OM-D E-M5

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  • Lenses that slow down the OM-D E-M5

    If you have an E-M5 maybe you can help me.

    I have started a new article on the Four Thirds User Knowledge Base which explores the issue of certain lenses slowing down the high speed sequential shooting rate that the E-M5 is capable of. I first noticed this when comparing the m.Zuiko 75-300 with the Panasonic 100-300mm; the latter starts to slow the shooting rate down when the lens is stopped down - even by a third of a stop off full aperture.

    You can find the article here:


    I need more data from E-M5 users using different lenses. Can you help?


    The article is a work in progress I would be grateful for your experiences. You're welcome to add your own information to the article directly, of course; just register and log in and you can start editing and contributing straight away!


    Ian
    Founder/editor
    Four Thirds User (http://fourthirds-user.com)
    Digital Photography Now (http://dpnow.com)
    Olympus UK E-System User Group (http://e-group.uk.net)
    Olympus camera, lens, and accessory hire (http://e-group.uk.net/hire)
    Twitter: www.twitter.com/ian_burley
    Flickr: www.flickr.com/photos/dpnow/
    Pinterest: www.pinterest.com/ianburley/

  • #2
    Re: Lenses that slow down the OM-D E-M5

    Photographing a program such as: http://free-stopwatch.com/ or the "APP" on a smartphone, is a very easy way to determine the speed of the cameras frame rate.

    Graham

    Keep smiling, it gets folk wondering what you've been up to

    Comment


    • #3
      Re: Lenses that slow down the OM-D E-M5

      Should we standardize on a set of camera settings to ensure repeatable results? For example, everyone reporting for this test should set manual focus, manual exposure, 1/2000 sec. shutter speed, and highest quality JPEG capture (or are we testing RAW?). Would JPEG processing settings make any difference, or are they identical as long as no art filters are applied? Run the test with several different apertures, from wide open to minimum, and report the speed results.

      - Hal -
      A Still Mind - Photography, Music, Meditation, Ministry - www.astillmind.net
      Olympus E-M5; Panasonic-Leica DG Summilux 25mm; Zuiko 12-60 SWD, 50-200 SWD; Sigma 105 Macro; Rokinon (Samyang) 7.5mm fisheye; Olympus 8/1.8 PRO fisheye; FL-50R; Giottos MT-8361 tripod with Gitzo GH2780QR ballhead.

      Comment


      • #4
        Re: Lenses that slow down the OM-D E-M5

        You should use a shutter speed faster than x-sync; 1/500th is ideal. Photographing a stopwatch is a good idea, but you will probably notice a difference in the shooting rate if there is one even without measuring the speed.

        Ian
        Founder/editor
        Four Thirds User (http://fourthirds-user.com)
        Digital Photography Now (http://dpnow.com)
        Olympus UK E-System User Group (http://e-group.uk.net)
        Olympus camera, lens, and accessory hire (http://e-group.uk.net/hire)
        Twitter: www.twitter.com/ian_burley
        Flickr: www.flickr.com/photos/dpnow/
        Pinterest: www.pinterest.com/ianburley/

        Comment


        • #5
          Re: Lenses that slow down the OM-D E-M5

          Couldn't let a good "testing" opportunity go by, without doing something.

          SO:

          With a lot of images like this and a spread sheet...



          The M.Zuiko 9-18 showed no difference between shooting at f/4 and f/22

          The M.Zuiko 14-42 II R showed no difference between fully open and fully stopped down

          The M.Zuiko 40-150 II R showed no difference between fully open and fully stopped down.

          There were some very minor speed differences between the lenses, with the 14-42 producing the fastest results, then the 40-150 followed by the 9-18. But this was only recorded at 2.1% and 3.8% slower.

          However: Put the Zuiko 14-35 f/2.0 on and the fps drops to 46% of the top speed.

          Interestingly with an adapter and an OM 50mm f/1.4 the fps was 2% faster than the 14-42.

          Which all goes to prove, that I have way too much time on my hands...
          Graham

          Keep smiling, it gets folk wondering what you've been up to

          Comment


          • #6
            Re: Lenses that slow down the OM-D E-M5

            Thanks for that Graham. What was the fastest frame rate you recorded? You were using an E-PL5 and that is rated to 8fps.

            Ian
            Founder/editor
            Four Thirds User (http://fourthirds-user.com)
            Digital Photography Now (http://dpnow.com)
            Olympus UK E-System User Group (http://e-group.uk.net)
            Olympus camera, lens, and accessory hire (http://e-group.uk.net/hire)
            Twitter: www.twitter.com/ian_burley
            Flickr: www.flickr.com/photos/dpnow/
            Pinterest: www.pinterest.com/ianburley/

            Comment


            • #7
              Re: Lenses that slow down the OM-D E-M5

              Originally posted by Ian View Post
              Thanks for that Graham. What was the fastest frame rate you recorded? You were using an E-PL5 and that is rated to 8fps.

              Ian
              With the OM lens, a very consistent 8.7 fps

              8.2 fps with the 9-18 M.Zuiko
              8.3 fps with the 40-150 M.Zuiko
              8.5 fps with the 14-42 M.Zuiko

              3.9 fps with the FT Zuiko 14-35 f/2.0 + Adaptor

              Everything was set to manual and only recording small jpg files.

              I've only ever used sequential a couple of times to capture things like burning and exploding lamps, etc..
              Graham

              Keep smiling, it gets folk wondering what you've been up to

              Comment


              • #8
                Re: Lenses that slow down the OM-D E-M5

                I've run a few more "tests" :

                FT Zuiko 50mm f/2 Macro - 6.45 fps
                FT Zuiko 50 - 200mm f/2.8 SWD - 4.4 fps
                FT Zuiko 75 - 300 8.91 fps
                FT Zuiko 35mm f/3.5 Macro - 8.33 fps

                However: (and this will come as no surprize to anyone)

                FT Zuiko 35mm f/3.5 Macro - 8.33 fps with an Old, Cold; nearly flat; Battery
                FT Zuiko 35mm f/3.5 Macro - 8.93 fps with a New, Cold; fully charged; Battery

                But a blistering 9.89 fps for the FT Zuiko 35mm f/3.5 Macro with a New Battery and still hot from the charger...

                This is such an easy test to try out on a cold, wet, Friday evening when the telly is rubbish and the "F1 Chatter" has finished

                I have to add that I'm so impressed with this little E-PL5. It really is brilliant.






                9.89
                Last edited by Graham; 16th March 2013, 07:43 PM. Reason: speelin erras
                Graham

                Keep smiling, it gets folk wondering what you've been up to

                Comment


                • #9
                  Re: Lenses that slow down the OM-D E-M5

                  Great stuff, Graham

                  Ian
                  Founder/editor
                  Four Thirds User (http://fourthirds-user.com)
                  Digital Photography Now (http://dpnow.com)
                  Olympus UK E-System User Group (http://e-group.uk.net)
                  Olympus camera, lens, and accessory hire (http://e-group.uk.net/hire)
                  Twitter: www.twitter.com/ian_burley
                  Flickr: www.flickr.com/photos/dpnow/
                  Pinterest: www.pinterest.com/ianburley/

                  Comment


                  • #10
                    Re: Lenses that slow down the OM-D E-M5

                    So if I use only manual focus lenses I can machine gun at maximum speed all the time.
                    It's the image that's important, not the tools used to make it.

                    The Grumpy Snapper blog or follow me on Instagram.

                    Comment


                    • #11
                      Re: Lenses that slow down the OM-D E-M5

                      I just tested the Panasonic-Leica DG Summilux 25mm f/1.4 on the E-M5. Manual focus, 1/500 second shutter speed, RAW capture, auto ISO. Here are the results:

                      f/1.4: 9.0 fps
                      f/5.6: 6.6 fps
                      f/16: 6.1 fps

                      For a fun comparison, I also tested f/5.6 with LF JPEGS. The speed was 6.5 fps, essentially the same as RAW.

                      - Hal -
                      A Still Mind - Photography, Music, Meditation, Ministry - www.astillmind.net
                      Olympus E-M5; Panasonic-Leica DG Summilux 25mm; Zuiko 12-60 SWD, 50-200 SWD; Sigma 105 Macro; Rokinon (Samyang) 7.5mm fisheye; Olympus 8/1.8 PRO fisheye; FL-50R; Giottos MT-8361 tripod with Gitzo GH2780QR ballhead.

                      Comment


                      • #12
                        Re: Lenses that slow down the OM-D E-M5

                        I was surprised by the slow results that Graham got with the 50-200 SWD, so I ran a set of my own. Just as with the PL 25mm, I set the shutter speed to 1/500, auto ISO, manual exposure and focus, and varied the f/stop:

                        f/2.8: 9.1 fps
                        f/5.6: 4.7 fps
                        f/16: 3.4 fps

                        It's amazing that changing only the aperture can make such a difference in the burst rate!

                        - Hal -
                        A Still Mind - Photography, Music, Meditation, Ministry - www.astillmind.net
                        Olympus E-M5; Panasonic-Leica DG Summilux 25mm; Zuiko 12-60 SWD, 50-200 SWD; Sigma 105 Macro; Rokinon (Samyang) 7.5mm fisheye; Olympus 8/1.8 PRO fisheye; FL-50R; Giottos MT-8361 tripod with Gitzo GH2780QR ballhead.

                        Comment


                        • #13
                          Re: Lenses that slow down the OM-D E-M5

                          Originally posted by hschnee View Post
                          I was surprised by the slow results that Graham got with the 50-200 SWD, so I ran a set of my own. <snip>
                          - Hal -
                          What method did you use to determine the speeds
                          Graham

                          Keep smiling, it gets folk wondering what you've been up to

                          Comment


                          • #14
                            Re: Lenses that slow down the OM-D E-M5

                            Originally posted by Graham View Post
                            What method did you use to determine the speeds
                            I think that my method was similar to yours. I photographed a stopwatch on my computer screen and snapped away using the settings I mentioned above. I counted the first ten frames from the captured set of images, calculated the total time recorded by the stopwatch, and divided (10 frames / X seconds = fps). Then repeated the procedure for each of the f/stops.

                            - Hal -
                            A Still Mind - Photography, Music, Meditation, Ministry - www.astillmind.net
                            Olympus E-M5; Panasonic-Leica DG Summilux 25mm; Zuiko 12-60 SWD, 50-200 SWD; Sigma 105 Macro; Rokinon (Samyang) 7.5mm fisheye; Olympus 8/1.8 PRO fisheye; FL-50R; Giottos MT-8361 tripod with Gitzo GH2780QR ballhead.

                            Comment

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