Olympus could sure have designed them for a slightly wider diagonal,
but, given the size of the lenses, I don't think much wider.
Alfredo
On Aug 25, 2005, at 2:16 AM, Moose wrote:
> Chuck Norcutt wrote:
>
>> Check pages 9 and 10 of the following 4/3 system PDF
>> <http://www.four-thirds.com/pdf/FourThirdsSystem.pdf>
>>
>> Note the emphasis on the mount diameter being twice the image circle.
>> Also, do not be confused by the statement "This gives wide
>> adaptability
>> among a variety of image sensors". This may sound like Olympus could
>> release a different size sensor (and they could) but since the 4/3
>> standard defines the size of the image circle the only freedom they
>> have
>> is changing the shape of the rectangle or making the sensor square.
>> They must stay constrained to the defined image circle size.
>>
>>
> Do we have any source which allows us to really know what the image
> circle of the DiZeta lenses is? We know the diagonal of the sensors,
> and
> generally assume that is the limit of lens coverage. In theory, Oly
> could have designed them all for a slightly larger diagonal for future
> flexibility. The current sensor is a 22.5 mm diagonal. A 4/3 ratio,
> 15x20 mm sensor would have a 25 mm diagonal.
>
> In keeping with the recent thread, an 8x10 format sensor of 16x20 mm
> would have a 25.6 mm diagonal.
>
> Not saying it is true, just that we wouldnt know if Oly didn't tell.
>
> Moose
>
>
> ==============================================
> List usage info: http://www.zuikoholic.com
> List nannies: olympusadmin@xxxxxxxxxx
> ==============================================
>
___________________________________
Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB
http://mail.yahoo.it
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|