1. Reminder: Please use our affiliate links for holiday shopping!

GX1 newbie : question about adapted lenes

Discussion in 'Panasonic Cameras' started by Ivan, Jan 30, 2012.

  1. Ivan

    Ivan New to Mu-43

    3
    Jan 30, 2012
    Hi all,

    I'm new to GX1 with LVF2 attached. I would like to buy a voigtlander 35mm f1.4 for this cam but I have some questions in my head.

    When I use the X kit lens and switch to manual focus mode. The LVF2 will automatically zoomed when I adjusted the focus lever. How can I achieve this with the voigtlander lenes attached ?

    Second question is how can my GX1 determine my apteure setting of the adapted lens? (e.g. If I use a 28mm f2.0 lens and set the apteure value @f4 on the apteure ring with A mode selected on my GX1, the light coming into the sensor before I press the shutter should be the max apteure on the lens, how can the camera get the correct exposure ?)

    I hope my English is understandable to all u guys for helping me. Thx very much!

    Cheers,
    Ivan
     
  2. Crdome

    Crdome Mu-43 Hall of Famer

    Sep 11, 2011
    West Central Indiana
    Chrome
    Assuming it functions similarly to the GH2. I think the camera's menu is already set up to do that, so it should happen with the Voightlander. If not, there is a thumb dial on the camera's back, at the top, directly behind the shutter. Push the button in with your thumb.

    When using a non-m4/3 lens, the aperture is set manually using the lens' aperture ring.

    -Chrome
     
  3. spatulaboy

    spatulaboy I'm not really here

    Jul 13, 2011
    North Carolina
    Vin
    In A mode, you set the aperture on the lens itself, and the camera will set a shutter speed.
     
  4. Ivan

    Ivan New to Mu-43

    3
    Jan 30, 2012
    Hi Chrome,

    Do u mean if I choose the manual focus mode, the cam will automatically zoom in when I rotate the focus ring on non-m4/3 lens ?

    Ivan
     
  5. BarefootPilgrim

    BarefootPilgrim Mu-43 Top Veteran

    517
    Dec 23, 2009
    Westchester, IL
    Bob
    No, it won't do that automatically when you have a non-m4/3 lens mounted. You will have to trigger the magnification manually by pressing the thumbwheel (as Cdrome suggests).

    This might sound a bit cumbersome, but it's actually very simple / easy. In fact, I prefer this to the automatic magnification because the auto-magnification doesn't hold the magnified image long enough to suit me (before it automagically returns to the non-magnified image).

    When you press the thumbwheel to enlarge the image, it will remain enlarged until you half-press the shutter button. Then it returns to the full-frame image so you can frame your shot correctly.
     
  6. shnitz

    shnitz Mu-43 Top Veteran

    989
    Aug 25, 2011
    Austin, TX
    For the zoom-in feature on your screen, you will have to manually do this. The camera will not sense that you are focusing.

    For the aperture, you have to adjust the lens on your camera to the desired aperture. Your GX1 will not communicated to an adapted lens in any way. So, for my Nikon 35mm f/2.0 for example, I open my aperture all the way to f/2. I then focus, with as much light coming in as possible. Once I am focused, I turn the lens down to f/4, and the camera will automatically adjust the exposure.
     
  7. Crdome

    Crdome Mu-43 Hall of Famer

    Sep 11, 2011
    West Central Indiana
    Chrome
    PS: when you try to shoot with a non-m4/3 lens you will get a "NO LENS" message. You have to go the the CUSTOM menu the icon is "C" + a wrench to turn "No lens" on.

    -Chrome
     
  8. Ivan

    Ivan New to Mu-43

    3
    Jan 30, 2012
    Do I need to do some setting on my cam before I can achieve this ? It's seems I'm adjusting the exposure compensation when I push the thumbwheel.
     
  9. fredlong

    fredlong Just this guy...

    Apr 18, 2011
    Massachusetts USA
    Fred
    When you rotate the thumb wheel you adjust exposure compensation. Pushing in until it clicks should magnify the image. You do not have to switch to manual focus mode.

    Fred
     
  10. BarefootPilgrim

    BarefootPilgrim Mu-43 Top Veteran

    517
    Dec 23, 2009
    Westchester, IL
    Bob
    As fredlong says above... press the thumbwheel (not rotate) to magnify the image. And as cdrome notes, you must also set the Custom menu's "SHOOT W/O LENS" setting to "ON" before you mount your lens or you'll see a "NO LENS" message.
     
  11. Iansky

    Iansky Mu-43 All-Pro

    Dec 26, 2009
    The Cotswolds, UK
    You will need to select the option "Shoot without lens" from the menu option, this will then allow you to use a 3rd party lens on the camera and take advantage of the zoom to focus functionality.