Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,699   Posts: 1,549,161   Online: 1134
      
Results 1 to 5 of 5
  1. #1
    Steve Smith's Avatar
    Join Date
    May 2006
    Location
    Ryde, Isle of Wight
    Shooter
    Medium Format
    Posts
    8,608
    Images
    122

    Converting a Helios 44 lens to Nikon F Mount

    A few days ago on another forum, there was a discussion about using a Helios 44 lens on a Nikon. You can buy adaptors to fit M42 lenses to Nikons but as the Nikon register distance is 1.04mm longer than M42, it is not possible to get infinity focus (unless you use an adaptor with a lens element).

    As I have three of these lenses, I decided to see if I could convert one to Nikon F mount.

    I removed the existing mount/back plate and measured its thickness at 6.6mm. Then I took a Nikon F mount off of an old, broken, third party Nikon fit lens. After filing down a ridge on the back, this measured 4mm thick so I would now be 2.6mm closer than before. To get to the correct distance, I needed a spacer 1.56mm thick. I had some 1.5mm black plastic which was close enough so I made a spacer which was a bit larger diameter than the mount in order for it to act in its other capacity as a flange to stop the aperture ring from falling off.

    Anyway, I proved to myself that it can be done.

    Click image for larger version. 

Name:	DSCN0163.jpg 
Views:	34 
Size:	136.4 KB 
ID:	64426

    And then today I read that these were made in Nikon F and Pentax K mounts so I needn't have bothered!


    Steve.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

  2. #2
    Denis P.'s Avatar
    Join Date
    May 2004
    Location
    Croatia
    Shooter
    Multi Format
    Posts
    466
    Images
    9
    Kudos for the effort, then

  3. #3

    Join Date
    Sep 2008
    Shooter
    Multi Format
    Posts
    111
    Hmm. I know some were made in K mount, I've never seen any in an F-mount though, other than surgical jobs like yours, so good job :-D I had an M42 Helios 44 I used to like shooting with no infinity focus on various F bodies. I eventually bought a spotmatic specifically to shoot it with. Then picked up some takumar lenses, then a couple more spotmatics and then ... well you get the picture. I could have saved myself an entire extra camera system had I done this modification originally to my 44 :-)

  4. #4
    Richard Sintchak (rich815)'s Avatar
    Join Date
    Jan 2003
    Location
    San Francisco area
    Shooter
    Multi Format
    Posts
    3,010
    Images
    1

    Converting a Helios 44 lens to Nikon F Mount

    Quote Originally Posted by Daire Quinlan View Post
    Hmm. I know some were made in K mount, I've never seen any in an F-mount though, other than surgical jobs like yours, so good job :-D I had an M42 Helios 44 I used to like shooting with no infinity focus on various F bodies. I eventually bought a spotmatic specifically to shoot it with. Then picked up some takumar lenses, then a couple more spotmatics and then ... well you get the picture. I could have saved myself an entire extra camera system had I done this modification originally to my 44 :-)
    Don't be too hard on yourself. Takumar lenses are awesome!
    -----------------------

    "Well, my photos are actually much better than they look..."

    Richard S.
    Albany, CA (San Francisco bay area)

    My Flickr River of photographs
    http://flickriver.com/photos/rich815...r-interesting/

    My Photography Website
    http://www.lightshadowandtone.com

  5. #5
    Steve Smith's Avatar
    Join Date
    May 2006
    Location
    Ryde, Isle of Wight
    Shooter
    Medium Format
    Posts
    8,608
    Images
    122
    Quote Originally Posted by Daire Quinlan View Post
    I know some were made in K mount, I've never seen any in an F-mount though
    Neither have I. I just read it on the internet so it must be true!!


    As I had three of these lenses and a spare mount off of a broken lens, It made sense to do it. I haven't tried it with film yet but it seems o.k. on one of those new fangled electric cameras which seem to bee all the fashion these days.


    Steve.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin