Old style 4s have that problem with the asa knob (asa shifts when
compensation is turned). Compare a 4T dial with an original 4 and you'll
see the 4T is a good 1-2mm higher. A 4 can be converted to a 4T type asa
dial, though it takes lots of parts including a longer rewind shaft, shaft
bushing, dial, etc.
John Hermanson
___________________________________
http://www.zuiko.com
Camtech, Olympus Service since 1977.
21 South Lane, Huntington NY 11743-4714
Phone/fax 631-424-2121
Free Olympus Manuals: 1-800-221-3000
___________________________________
----- Original Message -----
From: "Johnny Johnson" <jjohnso4@xxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Friday, October 12, 2001 2:01 AM
Subject: [OM] OM-4 ASA Dial Problem
| Hi folks,
|
| Got back yesterday from a ten day trip, mainly to Wyoming (Yellowstone
| Park) but with some time also spent in Utah, Idaho, and Montana. My
| walking around camera was an OM-2n loaded with Fuji Superia 200 and I also
| traveled with an OM-4 loaded with Fuji Velvia (50 ASA) for landscape shots
| using a tripod.
|
| I wanted to only risk the film being zapped once as carry-on luggage on
the
| airplane so I planned to mail the exposed rolls back two at the time to a
| local processor. Well, when I started to load the third roll of film into
| the OM-4 I noticed that it was set for ASA 80, not 50. I thought about
| this for a few minutes and finally decided that, in a careless moment, I
| had set the speed incorrectly when I loaded the first roll of film on the
| trip. So, I added a note with the first two rolls asking the processor to
| push it 2/3s stop and dropped it in the mail hoping that I had guessed
| right about the source of the problem.
|
| Only four or five shots into the third roll I glanced at the ASA dial and
| it was off the 50 setting again! This time I remembered that I had just
| added one stop of compensation when taking a picture of a waterfall so I
| tried rotating the dial again and, sure enough, the film speed changed. I
| fiddled with the dial a little more and found that, most of the time, I
| could set the exposure compensation normally but occasionally doing so
| would change the film speed.
|
| So, has anyone else experienced a problem similar to this and developed an
| easy cure? OK, I know I can discipline myself and check the film speed
| anytime I make exposure compensation adjustments but I'd rather
concentrate
| on other things. I'm hoping that someone has found that something like
the
| judicious application of a drop of oil will fix it.
|
| BTW, I'll be scanning the photos from the trip over the next several
| days. It doesn't appear that I got any real "wall hangers" but I'll post
a
| few of the more interesting ones to a web site anyway. Some of the List
| members from overseas might find the Yellowstone area interesting.
|
| Later,
| Johnny
|
| __________________________
| Johnny Johnson
| Lilburn, GA
| mailto:jjohnso4@xxxxxxxxxxxx
|
|
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