[Brightcolours]

[quote name='Klaus' timestamp='1309084049' post='9566']

Well, in this case you may argue that FF has little advantage in terms of noise because the comparable ground would be ISO 100 (MFT) vs ISO 400 (FF) thus compensating the higher speeds on the MFT side. There's still the higher speed requirement on the MFT side due to the smaller allowed circle-of-confusion - thus a one stop advantage for FF.



e.g. 9mm f/5.6 (MFT) at ISO 100 ~ 18mm f/11 (FF) at ISO 400.

[/quote]

You can't really argue that though... Usually one really does not neeed to mind the shutter speeds... 2000th of a sec or 250th of a sec, both will be fast enough.



So, in most situations, you can easily drop the ISO setting because you have the exposure time freedom.



Also, when light gets really low, you have the opportunity to use larger apertures too.



But yes, if you make everything equivalent, including the exposure time, the noise advantage of FF disappears.



You do not need a higher speed time on MFT, to compensate smaller pixels... the field of view is the same (even though the focal length for FF is bigger.. this due to the cropping) and the print size will be the same (even though the sensor is smaller, equaling out the circle of confusion factors.