Thanks Tim for all the info on 357 batteries, and Paul for the link
below. I have been testing my OM-4t's in the lab using a laser pointer
and scope to check shutter speeds. One of the things I noticed is a
larger variation in the 1/2000 speed when using a less than optimal
battery in the camera. Indeed the Energizer 357 performs better than
most. I would recommend that folks change the batteries often if they
depend on the top end speed being accurate.
The top end shutter speed is adjusted by a trim pot under the
leatherette (nearest the rewind knob) which adjusts the "trigger
delay". It is recommended to use a 3.0V power supply to make the
adjustment. This trigger delay is sensitive to supply voltage
variation, which I have seen when using weaker batteries. The right 357
battery gives a more consistent speed (along with a clean shutter
magnet).
Wayne
Hopkinton, MA
At 08:32 AM 7/11/2001 -0500, Paul wrote:
>You can also go to http://data.energizer.com/
>and look at the data sheets. Compare the discharge curves for the 357 with
>the 2L76 (a double cell) and the A76.
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|