I think the trade off on the OM 40/2 is little, it is a full frame with
weight of 140g and height 25mm. Sigma 30/1.4 is 430g and 24/1.8 is 485g!
C.H.Ling
----- Original Message -----
From: "Andrew Fildes" <afildes@xxxxxxxxxxxxx>
>
> Yes - if size isn't the problem and you want speed, Sigma has it
> covered with the 30mm and 24mm. But if you want something tiny and
> you're prepared to trade 1-2 stops as most people are these days,
> then this looks very good.
> Andrew Fildes
> afildes@xxxxxxxxxxxxx
>
>
>
> On 05/03/2008, at 11:48 PM, C.H.Ling wrote:
>
>> That's why the OM 40/2 is so highly sought-after :-)
>>
>> C.H.Ling
>>
>> ----- Original Message -----
>> From: "Andrew Fildes" <afildes@xxxxxxxxxxxxx>
>>>
>>> Pancake lenses have always tended to be a bit slower - a trade off of
>>> size for speed.
>>> Andrew Fildes
>>> afildes@xxxxxxxxxxxxx
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