I'm scratching my head a bit here, wondering what this lens is for. It's easy to figure out who it's for, since photo and camera enthusiasts are apparently queueing up to buy it, but how would it make a photo better compared to a 50mm lens that one can actually carry around?
I had some of the same thoughts when the 105mm f/1.4 in F-mount was launched, and when the 1.5 kg Sigma competitor came, I was flat out laughing. But those are telephoto/portrait lenses with twice the focal length.
There are some pretty cool 50mm lenses around, and even the somewhat bulky, not as sharp but very nice, 58mm f/1.4 is less than 400g. Is this about photography, or is it a question of having the sharpest, biggest knife, no matter what?
Please don't see this as an insult if you have already bought this lens. We all have different needs and urges. I'm just wondering...