Ultra macro!

Testing laowa 2.5-5X ultra macro lens.
Quite challenging to use without macro rail, but my piece, which i ordered about a month ago, is somewhere lost :/
I can't imagine to use this lens in the wild, because target has to be absolutely still, and focus stacking is the way how this lens is used.
And another problem is sensor dust, so much sensor dust.
Pic is 5X magnification of more usual macro lens.