Teleconverter for Panasonic G3 & 45/2.8

Discussion in 'Panasonic Cameras' started by sin77, Dec 26, 2011.

  1. sin77

    sin77 Mu-43 Veteran

    243
    Dec 9, 2011
    Singapore
    I am thinking of buying a teleconverter for my Panasonic Leica 45mm/f2.8 macro (46mm filter thread).

    I wonder how's the image quality and how much to pay for such teleconverter.
    And how many stops of light will be lost when the teleconverter is attached?

    Anyone care to advice?

    Thanks in advance.
     
  2. lannes

    lannes Mu-43 Regular

    49
    Jul 15, 2011
    Perth, Australia
    never seen a teleconverter for a m4/3 mount
     
  3. Dave in Wales

    Dave in Wales Mu-43 All-Pro

    Nov 5, 2011
    West Wales
    Another way of looking at it is to use an adapted lens.

    If you are looking for a 2x converter to give you 90mm you could allways use a Olympus Zuiko 50mm f1.8 (or similar) with a :43: adaptor this combo will give you a 100mm f1.8 with excellent quallity.

    Prices are very reasonable, I paid £35 for a mint 50mm and another £35 for a :43: adaptor.....£70 for a superb 100mm f1.8.

    I too have a G3 and the size of the combo fits it very well.

    Worth thinking about.
     
  4. sin77

    sin77 Mu-43 Veteran

    243
    Dec 9, 2011
    Singapore
    I am thinking of 45mm x 2 crop factor x 2 teleconverter = 180mm equiv to 35mm

    50mm x 2 crop factor = 100mm only
     
  5. addieleman

    addieleman Mu-43 All-Pro

    Aug 5, 2010
    The Netherlands
    Ad
    Unfortunately that's not how it is: a 50/1.8 with a 2x teleconverter becomes a 100mm f/3.6. Good teleconverters aren't cheap, best option IMHO is to buy a legacy 100mm. E.g. a Minolta MD 100/2.5 can be had for about € 70 and is truly excellent. Other brands also made fine lenses in the range 85-105mm.
     
  6. sin77

    sin77 Mu-43 Veteran

    243
    Dec 9, 2011
    Singapore
    As I researched, I realized that there's a feature in G3 called ex teleconverter but image size will need to be reduced. I guess I won't need to buy any teleconverter lens.
     
  7. addieleman

    addieleman Mu-43 All-Pro

    Aug 5, 2010
    The Netherlands
    Ad
    You can also crop in postprocessing, it has the same effect.
     
  8. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    Not exactly, but probably picking nits for the difference. Ex Tele conversion maintains the pixel pitch, so you're less likely to get jaggies with it compared to cropping in post
     
  9. sin77

    sin77 Mu-43 Veteran

    243
    Dec 9, 2011
    Singapore
    Agree. And cropping on software has less than ideal focusing
     
  10. speedandstyle

    speedandstyle Mu-43 Hall of Famer

    A tele-convertor will always reduce your aperture. Some 1.4x are only one stop but many are more and a 2x are usually around 2 stops and some times more. An add-on conversion lens usually isn't as bad in slowing down a lens but they often vignette and unless you get a very nice one cause distortions. I would find a good legacy 100mm lens and an adaptor.