4T boards have always been available, atleast they had been, don't know if
you can still buy one. They only practical way to keep a 4T going will be to
buy used bodies.
_________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane,
Huntington, NY, 11743-4714,
631-424-2121, www.zuiko.com
_________________________________
----- Original Message -----
From: "Matt Boland" <mattboland@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Wednesday, July 21, 2004 9:17 AM
Subject: [OM] Re: OM4 strange electronic buzzing sound
>
> Sorry, I didn't know this had all been discussed before.
>
> What is the availability of these boards like? Are they freely
> available, or are they scarce? Have they been hanging around USD$250 for
> a while, or have they been going up?
>
> Like I said, USD$250 for the boards is high. If it gets too high, then
> people will ditch the Ollies at some point instead of repairing them. I
> absolutely disagree with tossing something out because it is "cheaper"
> to buy something new rather than fix the problem. The overall cost is
> higher to manufacture something new rather than repair something broken
> (in general). I am talking here about real cost, like the cost to the
> environment, both from tossing out the old and manufacturing the new. So
> I was interested in what I could do to keep the OMs going long after
> Olympus ditched them.
>
> Err, sorry to crap on so much. Who's for making a digital back for the
> OM-1???
>
> Just kidding...
>
> Matt.
>
> John Hermanson wrote:
>
> > We've been through this before. The boards were made for Olympus by
Sharp
> > using proprietary ICs. At first Olympus tried to make their own
circuits
> > for the 4. They gave up and had Sharp do it for them.
> > _________________________________
> > John Hermanson
> > Camtech Photo Services, Inc.
> > 21 South Lane,
> > Huntington, NY, 11743-4714,
> > 631-424-2121, www.zuiko.com
> > _________________________________
> > ----- Original Message -----
> > From: "Matt Boland" <mattboland@xxxxxxxxxxx>
> > To: <olympus@xxxxxxxxxx>
> > Sent: Saturday, July 17, 2004 1:31 AM
> > Subject: [OM] Re: OM4 strange electronic buzzing sound
> >
> >
> >
> >>I guess I like photography AND engineering. I was just thinking that we
> >>could do better than USD$250.00 for an OM4Ti circuit. And I would get to
> >>make the shadow and hi-light buttons into -1/3,+1/3 stop buttons.
> >>
> >>W Shumaker wrote:
> >>
> >>>I mentioned that possibility a couple of years ago. But who has
> >>>really got the time to spend on it when that time could be spent
> >>>making photographs. My solution is to stockpile a few extra
> >>>bodies and hope they don't stop making 357 batteries and film.
> >>>The metering circuits of the OM-4t is the real trick. I'm sure with
> >>>todays electronics, much could be improved, calibration without
> >>>pots, rear curtain sync, .... but in the end you really don't end up
> >>>with that much more. Life moves on, we get older...
> >>>
> >>>When I got technical, a teacher told me to just go take some pictures.
> >>>And thanks to John and Clint, who probably aren't getting any younger
> >>>either, who help keep it all going.
> >>>
> >>>Wayne
> >>>
> >>>At 08:44 AM 7/15/2004, you wrote:
> >>>
> >>>
> >>>
> >>>>Is there enough demand to develop our own replacement circuits? I
don't
> >>>>know how much the circuits changed over the years and whether or not
> >>>>they use the same chips as the originals, but USD$250 sounds extreme.
I
> >>>>currently am working on a 32bit CPU board running linux, 32M of RAM
and
> >>>>Flash, and they will cost roughly USD$120 to manufacture. Texas
> >>>>Instruments make a nice little chip called the MSP430 which comes in
> >>>>many variants and is designed for ultra low power applications.
> >>>>Something like that could incorporate most of the functionality in
> >>>>software. I reckon a USD$40.00 part could be met. Of course, FCC and
CE
> >>>>EMC compliance would need to be addressed, so maybe the cost of
testing
> >>>>to those standards outweighs the development effort.
> >>>
> >>>
> >>>The material cost is not the issue when you figure in time and effort.
> >>>
> >>>
> >>>==============================================
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> >>>List nannies: olympusadmin@xxxxxxxxxx
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> >>>
> >>>
> >>
> >>--
> >>Matt Boland (BEng) Phone : 61 7 5594 9824
> >>R&D Engineer Mobile : 61 4 0835 1421
> >>Odyx Corporation Pty Ltd email : mattboland@xxxxxxxxxxx
> >>
> >>
> >>
> >>==============================================
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> >>
> >
> >
> >
> >
> > ==============================================
> > List usage info: http://www.zuikoholic.com
> > List nannies: olympusadmin@xxxxxxxxxx
> > ==============================================
> >
> >
>
> --
> Matt Boland (BEng) Phone : 61 7 5594 9824
> R&D Engineer Mobile : 61 4 0835 1421
> Odyx Corporation Pty Ltd email : mattboland@xxxxxxxxxxx
>
>
>
> ==============================================
> List usage info: http://www.zuikoholic.com
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