[Rover]

IMHO nothing wrong with MFT (nor APS-C) however hugely heavy (and  very expensive) lenses are totally against the concept for which most people go to MFT anyway

I guess such a lens is oriented towards those who own cameras and lenses in only one system and just to stay with just one system.

Don't get me wrong I am not saying MFT can't do fast lenses or that fast lenses are not for MFT, all I am saying is that when you go MFT you are looking for a light, compact  combo, this lens has none of it.

to understand my point imagine someone using Canon 40mm pancake on 1DX, it just doesn't seem right although it works: you bought the pancake for compact size and you mount it on a big camera body

this is how it should look

 

I know a pro who is doing just this. I know I would do the same if I had both the lens and the 1D X (I do get pretty close with a 1D Mark 4, but I'm eyeing a Tamron 45/1.8 more... but if someone makes me a present of this pancake, I would still be happy).

 

I "liked" your post for the picture alone.

 

I am, of course, also very tired of the equivalence discussion.

However, the MFT manufacturers have started playing that game - not us. 

 

Assuming that the 25mm f/1.2 will cost in excess of 1200EUR - which is likely - you could get Sony A7 plus Sony 50mm f/1.8 for the same price (and size/weight). And that's a comparison where one can get viable headaches really.


 

I thought you would be the last person to recommend the Sony 50/1.8, given what you said in the review.