Using the Canon "B" adapter ?

Discussion in 'Rangefinder Forum' started by Red Robin, Feb 21, 2013.

  1. Red Robin

    Red Robin Member

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    OK, I sprung for the Canon "B" adapter. That's the one that lets me use my manual focus SLR lenses on my LTM cameras.
    is gaining the correct focus a trick that I'm missing or what? The double image doesn't seem to move. Do I just try to do regular manual focus adjust as with a SLR camera?
     
  2. summicron1

    summicron1 Subscriber

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    yup. those lenses aren't coupled to the rangefinder, most likely, so you have to scale focus --- keep your f-stop at 3.5 or lower and you're not going to have much trouble.
     
  3. Mackinaw

    Mackinaw Member

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    Summicron is exactly right, with the "B" adaptor in place, any SLR lens you put on your camera won't be rangefinder coupled.

    No biggee though, especially if you use a wide-angle lens. A favorite combination of mine is to use my old FL 28/3.5 FL Canon on my M3. I just scale-focus and all is well.

    Jim B.