Originally posted by Rockbox Frankly I think you are kidding yourself here with your 'mathematics'. There is a recognisable difference between the E-M1.2 and the KP in terms of noise, the KP is slightly better and particularly so at higher ISO over 3200. As to weight, my E-M1.2 with 12-100 f4 is significantly heavier than my KP with 18-135WR. Many people think a heavier system is easier to hold steady than a lighter one, not sure myself. The main benefit for the Olympus I have found so far in my (limited) comparison of my two systems is that the shake reduction of the E-M1.2 12-100 combo is significantly better than the KP 18-135. In real everyday shooting there really isn't much difference in terms of IQ that is truly significant and it's not really possible to show any difference convincingly by posting photos on a forum like this. Sadly as a very long time Pentax user (since 1981) I prefer the feel and handling of the E-M1.2 to the KP and I think the handling of the KP is inferior to my old K5. But of course that's just me, each to their own.
the math is acceptable in terms of real life situations when you have older body to compare - like K3 ...
With the KP, it's a clear thing - the KP would be winner....
I was just trying to show, how quickly you can lose advantage of bigger sensor, because of the depth of field , when you're taking photos in concerts, because you have to choose more ISo, to compensate higher shutter speeds, and also "equialvalent" apperture.
In m43, there is a double (2x) factor, so when you choose f4, it's like you choose f8 in full frame, or f 6.7 - at APSC.
that lead to less high ISO value, and add to this slightly lower shutter speed, you can manage from your hand - and that's a full stop advantage, over tha same settings in APSC.
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Needless to say, new sensors from SONY, is unbeatable, and yes Sony produces m43 as well, as Apsc, and FF.
So, I except alternative design, as a step further - in m43 also, like we see it right now with apsc. ----
Math of sensor sizes, and depth of field, would be again correct.
Of course, I really don't want to get me missinterpreted,
APSC has a real advantage, but yet, m43, can do some tricks, to compensate that ...
With higher and better image stabilisation solutions - apsc can really get far away, like now in KP...
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Personally when we are tlaking about that here, I don't believe in FF sensors, and bigger, because APSC have already many advantages, and the picture quality is at least three times better, then just several years ago
Last edited by panonski; 04-23-2018 at 01:49 AM.