1. Reminder: Please use our affiliate links for holiday shopping!

A7ii & Vintage Lenses - How Many Axes?

Discussion in 'Adapted Lenses' started by tjdean01, May 5, 2015.

  1. tjdean01

    tjdean01 TalkEmount Regular

    37
    Jan 14, 2015
    Reading this A7ii review, I'm confused as to how many and what axes will be stabilized on my vintage lenses. Will my older lenses be able to use all 5 axes, 3, or only 1? And how many stops on average will this get me? Thanks!
     
    Last edited: May 5, 2015
  2. dbmiller

    dbmiller TalkEmount Top Veteran

    777
    Mar 2, 2012
    New England
    Vintage lenses are 3-axis at best - Pitch, Yaw, and Roll. In order to do the other two (XY), the camera needs to know what the focus distance is, and adapted lenses have no way to provide the camera with the focus distance. I'd love to see someone make a LTM adapter with rangefinder coupling for focus distance info and see what happens!

    Not sure how many stops are expected. But will vary from person to person depending on how steady they are to begin with. But should be similar to the 3-axis stabilization in OSS lenses.
     
  3. riskinstrument

    riskinstrument TalkEmount Regular

    145
    Nov 20, 2014
    Dallas, Texas.
    You can switch auto stabilization to manual and enter the focal length. Believe this gives you all 5 axis. For zoom lens, you must enter for whatever you set it to each time it's changed.
     
  4. unlo

    unlo Sony ******

    Jan 19, 2014
    Ohio
    Matt
    Just 3 when manually setting steady shot for manual lens.
     
  5. riskinstrument

    riskinstrument TalkEmount Regular

    145
    Nov 20, 2014
    Dallas, Texas.
    According to several review sites, x+y are dependent on focal length, and it can be supplied by the user or the lens. It is not provided if it is an OSS lens, as the stabilization in the lens provides it. So yes, you still can get 5 axis with a manual lens, you just have to input focal length manually.
     
  6. dbmiller

    dbmiller TalkEmount Top Veteran

    777
    Mar 2, 2012
    New England
    Not focal length, focus distance.

    Without the focal length, you only get 1-axis. Focal length gets you 3-axis. Focus distance gets you all 5.

    See http://briansmith.com/sony-a7ii-hands-on-review/ for a good description of the 5-axis stabilization and what each needs.
     
    • Informative Informative x 2
  7. riskinstrument

    riskinstrument TalkEmount Regular

    145
    Nov 20, 2014
    Dallas, Texas.
    I stand corrected.
     
  8. unlo

    unlo Sony ******

    Jan 19, 2014
    Ohio
    Matt
    It happens. It's a tricky concept. And I don't think Sony did a good job explaining it in the first place
     
  9. riskinstrument

    riskinstrument TalkEmount Regular

    145
    Nov 20, 2014
    Dallas, Texas.
    But they ship such great manuals with their cameras.
     
    • Funny Funny x 2
  10. unlo

    unlo Sony ******

    Jan 19, 2014
    Ohio
    Matt
    I usually only dig through those things if there is something I Can't find on my own. I'm more "hands-on"
     
  11. soeren

    soeren TalkEmount Top Veteran

    651
    Dec 12, 2014
    Næstved, Denmark
    Soeren
    Since when? :)
     
  12. riskinstrument

    riskinstrument TalkEmount Regular

    145
    Nov 20, 2014
    Dallas, Texas.
    I guess when I'm being sarcastic I need to label it as such.
     
  13. soeren

    soeren TalkEmount Top Veteran

    651
    Dec 12, 2014
    Næstved, Denmark
    Soeren
    :)
     
  14. tjdean01

    tjdean01 TalkEmount Regular

    37
    Jan 14, 2015
    Okay, thanks, guys. I'll have 3 axes. That should be enough to be let me shoot at 1/15 instead of 1/60 with a 50mm. I'm pretty steady to begin with, luckily.