Re: [OM] New E-1

[Chuck Norcutt]

Some of you may recall that a few days ago I requested BD to measure the 
E-1's lens flange to sensor distance; the objective being to determine 
whether there really is enough room for an OM adapter that would not 
require an optical element in the path.
BD reported the measurements to me and said that I could pass them on to 
the list... as long as I emphasize that he has no measuring instrument 
more sophisticated than a ruler and that he's extremely nervous about 
poking things down around the sensor.  So, consider these measurements 
as "quick and dirty".
With these caveats in mind, BD reports a measurement of 46.5mm for the 
inside diameter of the lens flange.  Also with a ruler, I measure about 
47mm for the OM flange.  These are so close I wonder if perhaps they are 
the same but I would have to guess that they probably are not.
But the more interesting measure is that BD reports that the flange to 
sensor distance is about 37mm.  Since the OM flange to film distance is 
46mm there's approximately 9mm to play with for the thickness of an OM 
to 4/3 adapter.  Even if these meaurements are off by a millimeter or 
two it's clear that there's plenty of mechanical room for an adapter and 
that no optical element is required.
This all lends credence to JH's discovery of what seems to be this 
adapter and also the guesstimated price of about $125.  If it needed an 
optical element Oly wouldn't be selling it that low.
Chuck Norcutt
Woburn, Massachusetts, USA




< 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 >