CV 21mm Vs. ZM 21mm 4.5 C Biogon

Discussion in 'Rangefinder Forum' started by Rol_Lei Nut, Mar 25, 2008.

  1. Rol_Lei Nut

    Rol_Lei Nut Member

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    Has anyone directly compared the Cosina-Voigtländer 21mm to the ZM 21mm 4.5 C Biogon?

    I have the CV, which I find a generally good lens, but do notice vignetting and often wish the corners were sharper (o.k., my mental reference is the Leica R 19mm second version, which sets a pretty high standard).

    Basically, I'd like to know if the (expensive) upgrade to the ZM would substantially improve those shortcomings.
     
  2. Pinholemaster

    Pinholemaster Member

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    Either the Zeiss or a Leica 21 mm will significantly improve your image quality, and make your wallet much lighter.

    Me, I'm really interested in the new Zeiss 18 mm f/4.0. Some day, but in the meantime I'll wish upon a star. Grin.

    Good luck with your choice.
     
  3. Tom Hoskinson

    Tom Hoskinson Member

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    How about the ZM 21mm f2.8 Biogon? I understand that it is the same price as the ZM 18mm f4 Distagon.

    I have a 18mm f4 T* Distagon in Contax (SLR) mount and it is a nice lens.
     
  4. Rol_Lei Nut

    Rol_Lei Nut Member

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    I'm looking for a light & compact travel lens (which the CV 21 does do brilliantly), I don't really need f/2.8 with (my use of) a very wide-angle RF lens. When size & weight are no issue, I have my Leica 19mm....

    BTW: I also have the Zeiss Distagon 18mm in Rolleiflex (SLR) mount; it is a completely different lens from the new ZM 18mm. While good, I expect the new ZM 18mm to be far better and have considered it.

    Only the CV 21mm viewfinder also doubles nicely as a 15mm viewfinder. So stick with a 21mm + 15mm? 18mm substituting both?? 18mm + 15mm and fiddle with finders?? (Start chasing tail and eyes glaze over...) :confused: