Olympus-OM
[Top] [All Lists]

RE: [OM] Auto Exposure Times & The Ideal Meteor Catcher

Subject: RE: [OM] Auto Exposure Times & The Ideal Meteor Catcher
From: duncanm@xxxxxxxxxxxxxxxxxxx
Date: Wed, 24 Mar 1999 11:18:48 +1000
Wayne wrote:
> It would be interesting to know what the actual current levels are. I
> assume to get the long exposure, the light metering is being
> integrated. I have a used OM-4T that will only time for 12 seconds with
> the cap on, while my newer OM-4Ti will do close to 4 minutes. I suspect
> leakage to be a problem. If it is being integrated, is there an analog
> integrator? Does anyone know what the internal circuitry is?

Have a look at

http://www.patents.ibm.com/details?pn=US04618238__&language=en

for details on the OM4

(for more enlightenment search for 'maitani' under Inventors)

     duncan




< 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 >


<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz