Commercial Ektar 8 1/2" comment wanted

Discussion in 'Large Format Cameras and Accessories' started by marcelwu, Mar 4, 2004.

  1. marcelwu

    marcelwu Member

    Messages:
    11
    Joined:
    Feb 17, 2004
    Location:
    Hong Kong
    Should any body has experience with this lense?
    I am using 4x5 now, and plan to migrate to 5x7. Does this lens have sufficient coverage?

    How about its quality, with compare to modern lenses, eg. Apo-Ronar etc.
     
  2. Steve Hamley

    Steve Hamley Member

    Messages:
    453
    Joined:
    Sep 7, 2002
    Location:
    Knoxville, T
    Shooter:
    Multi Format
    I don't have the lens, but references give the image circle as 270 mm. The 5x7 needs about 210 mm so it should cover with some movement. Commercial Ektars are Tessar type lenses and sharpness and quality control on the glass is considered excellent. If you have problems, I would suspect they would be from a well-used Ilex shutter.

    Image quality is likely to be a little less contrasty than modern lenses, and it is single coated rather than multicoated if that makes a difference (it wouldn't to me). I don't really consider an Apo-Ronar to be a modern lens even though they were manufacturered recently; the design is old.

    Steve
     
  3. marcelwu

    marcelwu Member

    Messages:
    11
    Joined:
    Feb 17, 2004
    Location:
    Hong Kong
    Does G-claron rather faverable?
     
  4. Steve Hamley

    Steve Hamley Member

    Messages:
    453
    Joined:
    Sep 7, 2002
    Location:
    Knoxville, T
    Shooter:
    Multi Format
    The G-Claron is an f/9 plasmat process lens. It has more coverage than the Commercial Ektar. It is also single coated. According to Schneider, the G-Claron needs to be used at f/22 or smaller at longer distances. I'd probably choose the G-Claron for the coverage, because it will use standard filters, and has a smaller modern shutter. The 210 G-Claron is mounted in a Copal 1 (if it is in a shutter) and the 8-1/4 Commercial Ektar is in an Ilex 3 IIRC.

    Steve
     
  5. MikeK

    MikeK Member

    Messages:
    557
    Joined:
    Mar 30, 2003
    Location:
    Walnut Creek
    Shooter:
    Large Format
    I have this exact lens in a No. 3 Acme Synchor shutter. It is a cracker of a lens and yes it does cover 5x7.

    Mike
     
  6. jd callow

    jd callow Moderator Staff Member Moderator

    Messages:
    8,003
    Joined:
    Jan 31, 2003
    Location:
    Milan
    Shooter:
    Multi Format
    I also had this lens, but only used it for 4x5. Mine was an earlier version, that was very very sharp. I sold it on ebay -- I didn't use it much -- and have regreted it ever since. I got around 270.00usd for it, yet I think it was as sharp a modern lens.

    Some links of interest:
    http://www.largeformatphotography.info/classic-experts.html
    http://www.hevanet.com/cperez/cameras/ektar_list.html
    http://www.largeformatphotography.info/lenses5x7.html