TOWER SHOE METER

[dr5chrome]

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

[Ian Grant]

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

[Ian Grant]

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

Ian

[Anscojohn]

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

Ian

******
Tower was a house label for the Sears, Roebuck company.

[Ian Grant]

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

[LaGrassa]

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.

[dr5chrome]

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

thanks.

dw

[Anscojohn]

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

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