Site Sponsors
Results 1 to 8 of 8

Thread: Leica-M 90mm pre-asph stiff focusing ring

  1. #1
    Member
    Join Date
    Dec 2011
    Location
    Montreal, Canada
    Posts
    107
    Post Thanks / Like

    Leica-M 90mm pre-asph stiff focusing ring

    I recently bought a Leica-M 90mm Summicron pre-asph lens which appears to have seen very little use - if any. Compared to my other two lenses (50mm and 28mm Summicrons which are recent productions) the focusing ring on 90mm is too stiff.

    Is this normal? Should I expect it to loosen up in time or will it require service to be re-lubricated?

  2. #2
    Senior Member
    Join Date
    Apr 2010
    Location
    GTA, Canada
    Posts
    587
    Post Thanks / Like

    Re: Leica-M 90mm pre-asph stiff focusing ring

    I say give it some time. give it some mileage and see if that helps first.
    Scott

  3. #3
    Senior Member
    Join Date
    Feb 2011
    Posts
    449
    Post Thanks / Like

    Re: Leica-M 90mm pre-asph stiff focusing ring

    The stiffness of the focusing ring does tend to vary with each lens type. The longer lenses are stiffer than the 50mm lenses for instance, and a 50mm Summilux is stiffer than a 50mm Summicron.

    Steve

  4. #4
    Workshop Member glenerrolrd's Avatar
    Join Date
    Nov 2007
    Location
    Jupiter FL/Atlanta GA
    Posts
    2,279
    Post Thanks / Like

    Re: Leica-M 90mm pre-asph stiff focusing ring

    While lens do loosen up with use , lubricants do tend to dry out over time . There are also some differences between copies of the same lens . On a 90 summicron the focus needs to be smooth with no flat spots or places where the lens seems to grab. The stiffness can be adjusted . I would use DAG for this type of work . Costs have typically been less the $100 and if you want he will calibrate and even have the mount ground for 6 bit coding for a little more.

  5. #5
    Super Duper
    Senior Member
    iiiNelson's Avatar
    Join Date
    Sep 2008
    Location
    Kentucky
    Posts
    3,181
    Post Thanks / Like

    Re: Leica-M 90mm pre-asph stiff focusing ring

    I have the same lens and yes it's a little stiff compared to the 24, 35, and 50mm lenses I have. It loosens up some but it's more important that it turns smoothly IMO.
    Sony Visible Light & IR Photographer
    http://www.iiinelsonimages.com

  6. #6
    Member
    Join Date
    Dec 2011
    Location
    Montreal, Canada
    Posts
    107
    Post Thanks / Like

    Re: Leica-M 90mm pre-asph stiff focusing ring

    Thanks for all your input. Focusing ring turns smoothly with no flat spots.

    I'll use it for a while to see if it improves. If not, I'll send it to DAG, although I read that waiting time might be long.

  7. #7
    Member
    Join Date
    Dec 2011
    Location
    Montreal, Canada
    Posts
    107
    Post Thanks / Like

    Re: Leica-M 90mm pre-asph stiff focusing ring

    That's the advice I got from the camera shop I took it to. Apparently, it has not seen much use.
    Quote Originally Posted by SYGTAFOTO View Post
    I say give it some time. give it some mileage and see if that helps first.

  8. #8
    Member Armanius's Avatar
    Join Date
    Mar 2011
    Location
    Houston, Texas, USA
    Posts
    210
    Post Thanks / Like
    Images
    6

    Re: Leica-M 90mm pre-asph stiff focusing ring

    I also have the 90 Cron pre-asph. The focus ring is stiff too, compared to all other M lenses I have/had.
    Armanius
    My Flickr

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •