*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
----- Original Message -----
From: "jamal ibrahim" <jam1306@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Sunday, January 12, 2003 11:48 AM
Subject: Re: [OM] OM4 drain and, lens adapter
Jon M, Chris B, Julian D, tried the 30 sec battery test. Nope, mine didn't
stop after 30 secs. Rats, but no I won't despair. It'll be interesting to
read the website re circuit boards.
So, any tips on minimising battery drain, short of getting a new circuit
board (how much would that cost anyway...and do you all think it's been
worth the expense, those that have had it done)? I remember some lengthy
discussion of this before.
Anyone can distill the definitive tips for me.
New question: I have a lens adapter, goes onto the OM4 to take pentax
screwmount lenses (eg 85mm f1.8). As the auto diaphragm is lost, I 'm sure
I need to set the lens on manual. But how am I meant to do the OM metering?
Is it OK on auto, or only on manual or both? Can't quite get my head round
the logic of what light is coming through etc to figure this out
confidently.
Cheers
Jam
Oxford
>From: Chris Barker <imagopus@xxxxxxxxxxxxxxxx>
>Reply-To: olympus@xxxxxxxxxxxxxxx
>To: olympus@xxxxxxxxxxxxxxx
>Subject: Re: [OM] OM4 batt.drain serial nos.
>Date: Sun, 12 Jan 2003 07:24:11 +0000
>
>Jam
>
>My OM4 is 1107711, bought new in 1989, and its battery check stops at
>30 seconds. This apparently indicates a post-mod system, from early
>discussions. Anyway, I have never had a problem with excessive
>battery drain.
>
>Chris
>
>At 20:45 +0000 11/01/03, jamal ibrahim wrote:
>>Hi all, I think I read somewhere that the OM4 battery drain problem
>>was fixed some way through the OM4 series. Does anyone know from
>>what serial number on? Unlikely that mine was in the fixed second
>>half of the series (serial no 1085981), but let me know if you do
>>know. Just bought it a couple of months back, here in Oxford, UK.
>>Really pleased to have taken photos I couldn't or dare not take
>>before. The spotmetering has been tremendous. Cheers, happy new
>>year and good snapping to you fellow olympians.
>>
>>Also a happy owner of half framers Pen EES (£8, charity shop) and
>>Pen FT (£198, treated myself), both of which have taken nice
>>pictures.
>>
>>Jam
>>Oxford, UK
>>
>
>--
><|_:-)_|>
>
>C M I Barker
>Cambridgeshire, Great Britain.
>.
>+44 (0)7092 251126
>mailto:imagopus@xxxxxxxxxxxxxxxx
>http://www.threeshoes.co.uk
>http://homepage.mac.com/zuiko
>... a nascent photo library.
>
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