so what is that ?? The thing can not take pictures but ... If we imagine.
However, one should not lose the desire on the basis of the first setbacks and put the LB in the corner because there may be more than you want to believe.
As a portrait lens, it is (if one may suffer the effect) a hammer and outdoor makes it really fun.
It is also possible with a little practice photos make a fisheye effect very similar.
I've fallen in love with the fuzzy thing.
