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Focus distance of the 60mm macro at 2:1?

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  • Focus distance of the 60mm macro at 2:1?

    I'm looking to make a slide copying jig for my E-M5 now that my slide scanner has died. I was surprised to find the 12-50 kit zoom in macro mode will focus close enough for the necessary 2:1 ratio but ultimately I'd like to use the 60mm macro lens (when I can afford to buy one!). Can someone please tell me what the front-element to subject distance is with this lens at approx 2:1? For the 12-50 it's around 80mm but I need to build in enough adjustment in case I change to the 60mm in future. Thanks .

    By the way, for illumination I'm using a white LED panel I found on eBay for the ludicrously low price of £1.29 including postage from Hong Kong! This is plenty bright enough for the job, giving exposures of around 1/60 at f/8, ISO200. Slides are mounted in an old Unitor slide copier attachment I had for my OM film cameras and which has the necessary diffuser built in. Once I've finished the jig I'll put a picture up if anyone's interested.

    Edit: I forgot to mention I have an OM 50mm f3.5 macro lens which I also tried but found difficult to focus as the focus assist feature of the E-M5 doesn't appear to be available with legacy lenses. It is available by a button press on the E-620 but I can't find any way of engaging it on the E-M5, it only appears when the focus ring of ZD lenses is turned. Or am I missing something?

    Regards
    Richard
    Regards
    Richard

  • #2
    Re: Focus distance of the 60mm macro at 2:1?

    About 130mm from front bezel to subject for 1:2 (half size). A little more to the actual front element. To the focal plane it's 230mm

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    • #3
      Re: Focus distance of the 60mm macro at 2:1?

      Originally posted by Otto View Post
      ...the focus assist feature of the E-M5 doesn't appear to be available with legacy lenses.
      Richard,
      Assign the "multi-function" function to Fn2, press Fn2 and rotate back knob to select "magnify" and then release, press & release Fn2 to enter focus assist mode, press & release a second time to magnify.
      Cameras: E-M5, E-PM2, OM40, OM4Ti
      Lenses (M.Zuiko Digital): 7-14mm/F2.8, 12-40mm/F2.8, 40-150mm/F2.8+TC1.4x, 12-50mm/F3.5-6.3, 14-42mm/F3.5-5.6 EZ, M.ZD 40-150 F4-5.6 R, 75-300mm/F4.8-6.7 Mk1, 12mm/F2, 17mm/F1.8
      Lenses (OM Zuiko): 50mm/F1.2, 24mm/F2, 35mm/F2.8 shift
      Lenses (OM Fit): Vivitar Series II 28-105mm/F2.8-3.8, Sigma 21-35mm/F3.4-4.2, Sigma 35-70mm/F2.8-4, Sigma 75-200mm/F2.8-3.5, Vivitar Series II 100-500mm/F5.6-8.0, Centon 500mm/F8 Mirror
      Learn something new every day

      Comment


      • #4
        Re: Focus distance of the 60mm macro at 2:1?

        Thanks Mike - you're right I did mean 1:2 (half size). 230mm is perfect, as with the 12-50 it's about 170mm and there's 90mm of adjustment on the copier rail.

        OM User - that's what I was looking for, thank you . That should enable me to use my OM 50/3.5. I love the fact that the E-M5 is so configurable but sometimes things are well hidden in the menus!

        Regards
        Richard
        Regards
        Richard

        Comment


        • #5
          Re: Focus distance of the 60mm macro at 2:1?

          Otto, need to add that a longer press on the Fn2 button will take you out of zoom focus mode so be careful how long you press the button. Some people have been caught out by this before they got used to it.

          You will aslo find that on a regular MFT lens, if you are in zoom focus mode and not zoomed in then turning the focus ring on the lens will not zoom you in. This is a quick way to disable that zoom in/zoom out feature if you find it distracting for some subjects.
          Cameras: E-M5, E-PM2, OM40, OM4Ti
          Lenses (M.Zuiko Digital): 7-14mm/F2.8, 12-40mm/F2.8, 40-150mm/F2.8+TC1.4x, 12-50mm/F3.5-6.3, 14-42mm/F3.5-5.6 EZ, M.ZD 40-150 F4-5.6 R, 75-300mm/F4.8-6.7 Mk1, 12mm/F2, 17mm/F1.8
          Lenses (OM Zuiko): 50mm/F1.2, 24mm/F2, 35mm/F2.8 shift
          Lenses (OM Fit): Vivitar Series II 28-105mm/F2.8-3.8, Sigma 21-35mm/F3.4-4.2, Sigma 35-70mm/F2.8-4, Sigma 75-200mm/F2.8-3.5, Vivitar Series II 100-500mm/F5.6-8.0, Centon 500mm/F8 Mirror
          Learn something new every day

          Comment


          • #6
            Re: Focus distance of the 60mm macro at 2:1?

            Thanks, I just verified those functions, useful to know. One thing though, after pressing Fn2 rotating the rear knob doesn't step through the functions, it just works normally (i.e. adjusting aperture in A mode, etc). The only way I could choose "magnify" or any other function for the Fn2 button was via the menus. Presumably though once I've got the camera set up the way I want it for slide copying, I can assign those settings to a "MySet"?
            Regards
            Richard

            Comment


            • #7
              Re: Focus distance of the 60mm macro at 2:1?

              Originally posted by Otto View Post
              T...after pressing Fn2 rotating the rear knob doesn't step through the functions, it just works normally (i.e. adjusting aperture in A mode, etc)
              Otto, Umm.. just verified it. With Fn2 assigned as multifunction (highlight/shadow, white balance, magnify, image aspect) press and hold Fn2. Then rotate either knob. As you rotate it a small popup appears on the OLED screen/viewfinder with 4 small icons for each of the 4 multifunctions, the current selected one is highlighted in green, and the name of it appears above.
              Cameras: E-M5, E-PM2, OM40, OM4Ti
              Lenses (M.Zuiko Digital): 7-14mm/F2.8, 12-40mm/F2.8, 40-150mm/F2.8+TC1.4x, 12-50mm/F3.5-6.3, 14-42mm/F3.5-5.6 EZ, M.ZD 40-150 F4-5.6 R, 75-300mm/F4.8-6.7 Mk1, 12mm/F2, 17mm/F1.8
              Lenses (OM Zuiko): 50mm/F1.2, 24mm/F2, 35mm/F2.8 shift
              Lenses (OM Fit): Vivitar Series II 28-105mm/F2.8-3.8, Sigma 21-35mm/F3.4-4.2, Sigma 35-70mm/F2.8-4, Sigma 75-200mm/F2.8-3.5, Vivitar Series II 100-500mm/F5.6-8.0, Centon 500mm/F8 Mirror
              Learn something new every day

              Comment


              • #8
                Re: Focus distance of the 60mm macro at 2:1?

                Ah - if I rotate the knob while the Fn2 button is pressed then yes, I can select the different functions . By pressing and holding the button, and then releasing it, the knobs work normally.
                Regards
                Richard

                Comment


                • #9
                  Re: Focus distance of the 60mm macro at 2:1?

                  I found it much better to just assign Fn2 as magnify, not multifunction. My brain can't cope with fiddly menus and submenus when taking pictures.

                  Comment


                  • #10
                    Re: Focus distance of the 60mm macro at 2:1?

                    That's what I did actually when I couldn't figure out how to use the Multifunction setting .

                    I've finished the first iteration of the slide copier using the 50mm OM macro and now I can focus it properly it significantly outperforms the 12-50 in macro mode (which I'd expect) and to be honest, it's probably not worth me investing in a m.Zuiko 60mm macro. Copies are well ahead of my Epson 4990 flatbed scanner and at least on a par with my Nikon LS40, and take seconds to make rather than minutes. Now, if I could get an ICE system to work ...!
                    Regards
                    Richard

                    Comment

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