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Adjustable Aperture Focal Reducer Speed Booster

Discussion in 'Accessories' started by PhotoDmiK, May 27, 2015.

  1. PhotoDmiK

    PhotoDmiK Mu-43 Regular

    83
    May 26, 2015
    This week I found Adjustable Aperture Focal Reducer Speed Booster from Canon EF to micro 4/3 mount for sale on Chinese market. Is this adjustable aperture worth additional $1-$2 :blush: ? It is built into adapter and I counted 16 aperture blades.
    Can't find any review of this product yet.

    I have only M42 and m4/3 lenses so far. I can mount M42 lenses using additional M42-EOS adapter.
     
  2. Klorenzo

    Klorenzo Mu-43 All-Pro

    Mar 10, 2014
    Lorenzo
  3. PhotoDmiK

    PhotoDmiK Mu-43 Regular

    83
    May 26, 2015
    No, I found more modern adapter with aperture blades built in. You may search aliexpress for words in title. Not sure if direct links allowed.
     
  4. bredman

    bredman Mu-43 Veteran

    458
    May 30, 2013
    Sherwood Forest
    Pete
    Only use the adapter iris for Canon EF mount lenses, for everything else always use the lens iris only.
     
  5. bredman

    bredman Mu-43 Veteran

    458
    May 30, 2013
    Sherwood Forest
    Pete
    Even with EF mount lenses there will be issues at smaller apertures due to the incorrect position of the iris.
     
  6. PhotoDmiK

    PhotoDmiK Mu-43 Regular

    83
    May 26, 2015
    There are some fast lenses without iris. Projection and night vision for example. Apertures smaller than 6 are useless on such lenses for me. I'll use m4/3 kit lens instead.
     
    • Agree Agree x 1