Maybe I'm late for this topic but it may be worth a revisit.

Do I need to regularly change batteries in my TL120? Or for that matter, my RBT, or my Voightlander VCII meter?

In the old days with a match-needle meter, it was wise to change batteries regularly since the voltage was critical to what the meter read. With a digital under-over-just right, 3 LED meter the voltage is only critical in that the circuit will function and light the LEDs. If this is correct, I would only need to change the batteries when the LEDs stop lighting up.

Am I correct in thinking this, or am I all wet?

Timo

timo_puhakka wrote:

> Maybe I'm late for this topic but it may be worth a revisit.
>
> Do I need to regularly change batteries in my TL120? Or for that matter, my RBT, or my Voightlander VCII meter?
>
> In the old days with a match-needle meter, it was wise to change batteries regularly since the voltage was critical to what the meter read. With a digital under-over-just right, 3 LED meter the voltage is only critical in that the circuit will function and light the LEDs. If this is correct, I would only need to change the batteries when the LEDs stop lighting up.
>
> Am I correct in thinking this, or am I all wet?

The batteries also power the shutter circuit.
If your batteries are weak, they could fail to time the
shutter correctly.
--
John Thurston
Juneau Alaska
http://stereo.thurstons.us

Got the answer in 2 minutes! Only with stereo folks. thank you. Now what about the VC II meter.

Timo

--- In MF3D-group@yahoogroups.com, John Thurston wrote:
ange the batteries when the LEDs stop lighting up.
> >
> > Am I correct in thinking this, or am I all wet?
>
> The batteries also power the shutter circuit.
> If your batteries are weak, they could fail to time the
> shutter correctly.