[Dietrdeb]

Perspective control??

You should compare it to the Canon EF 35mm f2 or EF 35mm f2 IS USM, as it is a 23 x 1.5 = ~35mm 1.4 x 1.5 = f2.1 FF equivalent.. Of course it is less heavy and has less blur wide open than an f.4 FF lens.

It is not smaller or lighter than the 35mm f2 lenses, but you do have a smaller and lighter combo with the camera body.

Actually it is not at all like a FF with a 35mm f2.  The exit elements are much larger than a 35mm f2 to accomidate the light transfer of a F1.4. Also I have shot with a Canon 35mm f2.  It is a crappy lens.   A comparison to the 24mm f 1.4 is more akin.  I agree with Klaus this is apples to oranges. 

 

You are forgetting that although the bokeh might resemble that of an f2 lens, in actual shooting conditions it allows the exposure control of a 1.4.  For street photography this often makes a huge difference.