Thanks. I hadn't realized that. Ax where x is even is 3:2, Ax where x
is odd is 4:2.8.
But not having A size printing papers I've now accumulated yet another
very interesting but useless to me piece of info. :-)
Chuck Norcutt
On 5/5/2012 12:15 PM, Frank Wijsmuller wrote:
> Actually, because the A-x formats *double* each iteration in only one
> direction (*not* proportionally 'enlarged'!), they serve both 2x3 and 3x4
> sensors...
> ....
> A5 ~ 4x3 (210x148mm - 4:2,8)
> A4 ~ 3x2 (297x210mm - 3:2,1)
> A3 ~ 4x3 (420x297mm - 4:2,8)
> A2 ~ 3x2 (594x420mm - 3:2,1)
> ....
>
> That makes it a draw ;-)
>
> Best, Frank.
>
>
> 2012/5/5 Wayne Harridge<wayne.harridge@xxxxxxxxxxxxxxxxxxx>
>
>> 4/3 is also a good fit for A4, A3,... paper sizes.
>>
>>
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|