What's These Markings/Widgets on These Lenses?

Discussion in 'Adapted Lenses' started by Wab, Jun 12, 2015.

  1. Wab

    Wab Mu-43 Regular

    May 27, 2015
    I've taken a closer look at my lenses and google has failed to provide the answers, so I'm wondering if you know? You probably do!

    What's this on my Vivitar Series 1 300m f/5.6 (serial 37XXXXXX):
    The EE and M with the slidy button underneath?
    View attachment 424545 DSCF7660 by Tosh31, on Flickr

    And this (the silver button depresses):

    View attachment 424546 DSCF7661 by Tosh31, on Flickr

    And can I ask why do they have a left and right aperture scale? It only appears to rotate in a manner that the green scale is used. And is there a relationship to these to the similarly coloured distance scale above them? Also what's the aperture scale for - the one above the aperture ring? And why are two of the markings in red (5.6 and between 16 and 22). Oh, and why are two f.5.6 (one in green and the other in orange)?

    View attachment 424547 DSCF7663 by Tosh31, on Flickr

    And my very last question (apologies), what's this red line for on my Vivitar Series 1, 70-210, f/3.5 (Ser 37XXXXX):

    View attachment 424548 DSCF7664 by Tosh31, on Flickr

    Thanks in advance!
  2. eteless

    eteless Mu-43 All-Pro

    Jun 20, 2014
    The EE/M is "electronic eye" or manual I believe, so automatic aperture as determined by the camera or manual.

    Edit: The silver button is an unlock for the universal mount, press it in and rotate the collar to the O(pen) position rather than L(ocked).

    The aperture scale is for depth of field, it shows how much will be in focus at those apertures (they line up with the ranges on the focusing ring).

    The orange/red mark is for infrared, it focuses the longer wave length light to a closer point and you need to adjust focus if using IR film.

    The red line is the depth of field as above however because it's a zoom the amount changes depending on the focal length, thus more of the line is exposed as you zoom out.
    Last edited: Jun 12, 2015
    • Informative Informative x 1
  3. HarryS

    HarryS Mu-43 Top Veteran

    Jun 23, 2012
    Midwest, USA
    Your Vivitar has a Tamron Adaptall mount. This allowed them to make a single lens. Customers would
    buy the appropriate mount to match their SLR. I would not advise flipping the lever to the "O" (open)
    position, as the adapter will come off and you might not easily figure out how to re-attach it. I own a
    couple of these Adaptall mounts. They are pretty fiddly. I have a Minolta mount that likes to fall off.

    View attachment 424564

    Some cameras turned the aperture one way and others turned them the other way. So
    the lens was built so the aperture blades were fully open in the center position, and would
    close if you turned the ring either way. The Adaptall adapter will restrict the rotation only to
    one direction.

    View attachment 424565

    The red line is a DOF (depth of field) guideline.
    View attachment 424566
    • Informative Informative x 1
  4. dwig

    dwig Mu-43 Top Veteran

    Jun 26, 2010
    Key West FL
    • Informative Informative x 1
  5. Wab

    Wab Mu-43 Regular

    May 27, 2015
    Thanks all. Particularly enjoyed reading about the IR line. I just wondered if I was missing something helpful here.

    Thanks again.
  6. HarryS

    HarryS Mu-43 Top Veteran

    Jun 23, 2012
    Midwest, USA
    You're absolutely right. I'm probably mixing my T-4 lens with a TX mount (or vice versa), which is why it likes to come apart.
    Last edited: Jun 13, 2015