if you go back through the archives... you will see numerous posts about how it was not practicable to make a Q with other FL and still keep it small and usable...whether that is still true now- i do not know..i assume the rules of physics have not changed-- but perhaps design and engineering have advanced in the past 2 ½ years to allow a small Q with a 35 or 50 FL
I previously read many of those threads, and the references to "it was not practicable to make a Q with other FL and still keep it small and usable"
But when one compares the physical dimensions (from the above wiki link) of
1) the ASPH-Summilux-M 35FLE, it is smaller than the ASPH-Summilux-M 28mm (granted that the Q 28mm is f/1.7)
2) the ASPH-Summilux-M 50, is also smaller than the ASPH-Summilux-M 28mm (granted that the Q 28mm is f/1.7).
So If Leica can make a Summilux-Q 28mm f/1.7 work, it should be feasible that they could also make "small and usable" versions of a new Q with either....
Summilux-Q 35mm f/1.7
Summilux-Q 50mm f/1.7
Edited by dugby, 13 January 2018 - 02:00.