TOWER SHOE METER

Discussion in '35mm Cameras and Accessories' started by dr5chrome, Dec 17, 2009.

  1. dr5chrome

    dr5chrome Member

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    Anyone out there know how this meter works?

    We have good needle movement but the readout is confusing and doesnt seem to match F#s or shutter speeds. This is a Japan model.

    There is just 1 set of numbers that the needle points to.

    Thanks!

    regards

    dw
     

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  2. Ian Grant

    Ian Grant Subscriber

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    They may well be EV numbers some cameras have a coupled f-stop/shutter speed system that links to the EV's. Actually Rollei used the system as did many other manufacturers including quite afew Japanese manufacturers.

    At 100 ISO EV 10 is 1/30th @ f5.6, 1/60th @f4 etc, EV's change with film speed hence that dial. At a set EV changing the f-stop or speed alters the other parameter to still give the same exposure.

    Ian
     
  3. Ian Grant

    Ian Grant Subscriber

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    Oh and wasn't Tower the US brand name for one of the larger Japanese manufacturers ?

    Ian
     
  4. Anscojohn

    Anscojohn Subscriber

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    Tower was a house label for the Sears, Roebuck company.
     
  5. Ian Grant

    Ian Grant Subscriber

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    Yes but Sears Roebuck were the main or only importer at one point for one of the major Japanese 35mm camera manufacturers. My literature's in the UK so I can't check who.

    Interesting the maximum reading seems to be EV 15, which is 125th @ f16 for 100 ISO film so about the normal exposure for a bright sunny day anywhere, my Gossen meters only read 2 stops higher.

    Ian
     
    Last edited by a moderator: Dec 17, 2009
  6. LaGrassa

    LaGrassa Member

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    My Minolta Hi-Matic 7s has coupled shuter speed and aperature rings which have a window that displays EV. The analog meter seen in the viewfinder also shows EV. Of course, all dependant on ASA.
     
  7. dr5chrome

    dr5chrome Member

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    ..ahh EV meter! should have known that..

    thanks.

    dw
     
  8. Anscojohn

    Anscojohn Subscriber

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    Sears sold Nicca cameras as Tower. Mamiya, too. I think also Ricoh.