>Ian wrote:
>
> > ...the light meter needle responds to light and to moving any of the
> > shutter, aperture, or ASA dials. Imagine
> > my surprise when I removed the bottom cover and there is no battery.
> > There isn't another source of power, is there?
>
>No. That's very strange. I've tested my 1N without batteries and it
>doesn't respond at all...
>
>Simon
My 1N (purchased in 1976, S/N 656xxx) has always shown the behaviour
Ian describes, with the switch set to Off (presumably the same as no
battery, although I haven't checked the circuit diagram to be sure).
Yes, you may ask how I learned this...
Did a couple of quick tests now. (1) With the meter switch On, the
needle is centred at 1/30 f/2.8. With the switch at Off, it's centred
at 1/2. (2) With the meter switch On, the needle is centred at 1/2
f/11. With the switch at Off, it's centred at f/2.8.
Four stops, whether you use adjust the aperture or the shutter speed.
Thus, the meter switch or battery presence is an ND 16 filter, if I
do my math correctly :-) .
Michael
--
Michael R. Collins ... Michael.Collins@xxxxxxxxxxxxxxx
Toronto, Ontario, Canada
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