You don't know Dawid enough, he was talking about DOF. But then a 40/1.4
(4/3) may not be as good as a 80/2.8 (FF).
C.H.Ling
----- Original Message -----
From: "Chris Barker"
>I think that you're right, Andrew. the 40/1.4 becomes an 80/1.4 with the
>2x crop factor of the 4/3 cameras.
>
> Chris
>
> On 6 Jan 2010, at 08:53, Andrew Fildes wrote:
>
>> Do you really lose two stops - can't see than myself.
>> As in, it doesn't quite make sense to me.
>> Isn't it a question of light intensity rather than volume?
>> For instance, if I stop down two stops the viewfinder will get dimmer
>> (if I hold down a DOF button). But if I were to crop down the
>> focussing screen to 4:3rds size instead, the view within that crop
>> would be just as bright. Surely.
--
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