On Sun, 01 Dec 2002 18:35:39 GMT, "Tony Spadaro" wrote:

> I don't know what brand you are talking about but I've used 2x converters
>on several and they work without stop down metering.

Then you were using color negative film with the f1.4 lens
and 2X converter, or you were using lenses around f1.8
or slower... The coupled-metering of the combo cannot be
correct due to the inability of the converter to pass all
the light of an f1.4 lens... If you compare the exposure
with stop-down metering with the lens at f1.4 and at f2
with the 2X converter, you will find the shutter speed stays
nearly the same, though the lens passes nearly twice the
light at f1.4 as f2...