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Re: [OM] OM4 drain and, lens adapter

Subject: Re: [OM] OM4 drain and, lens adapter
From: "John Hermanson" <omtech@xxxxxxxxx>
Date: Mon, 13 Jan 2003 08:44:29 -0500
I'd suggest  not using LR44 at all (alkaline).  The following is short list
of alternative silver oxide:

357, MS76, KS76, SR44, SR44W, G13, S76, 303.........
_________________________________
John Hermanson  www.zuiko.com
Camtech, Olympus Sales & Service since 1977
21 South Lane, Huntington NY 11743-4714
631-424-2121 For Free Olympus manuals,
please call 1-800-221-3000
_________________________________
----- Original Message -----
From: "Julian Davies" <julian_davies@xxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, January 12, 2003 8:05 AM
Subject: Re: [OM] OM4 drain and, lens adapter


*ALWAYS* use 357 batteries. next best are sr44, followed by lr444. Don't be
tempted by CR1/3n as these will give dramatically short life in the camera
(although I keep one in my camera case as an emergency last resort back up
because of the good shelf life).
When the camera is not in use, take the batteries out when practical, or at
least set the shutter ring to mechanical (red) 60 or B. The killer for the
batteries is the current drawn when the camera is not being used. As far as
I know, the consumption is the same for all versions when actually in use.
Always check the batteries before you go out for a day's shooting
Don't leave a T series flash mounted and charged on the hot shoe - the LED
in the viewfinder is surprisingly greedy in some cases.
Avoid using the illuminator unless you actually need it.

Unless there is a fault in your camera, it is certainly not worth upgrading
the board. The "short" battery life is only relative, and is primarily
caused by the lack of a genuine "off" switch, and resulting quiescent
current draw, so sensible precautions will get you through.

For the adaptor..

As long as the rear of the adaptor has a pin to fool the camera into
believing that the lens is fully open, the meter will work for manual
diaphragm, as it then just measures the light actually getting in and
doesn't attempt to compensate for the difference between this and the light
which will be coming in when the aperture closes.

Julian
Cambs, UK




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