new perspectives

First of all, what I did not like so much:
Just snap visor - no aperture priority
Iris adjustment difficult to read
Aperture ring cheap plastic - no depth of scale -
But these are trifles that do not fall particularly in's weight - so I would not depreciate.
What I like:
Metal bayonet
soft but precise distance adjustment
total clean processing
removable sun visor
Lens cap on the lens hood
favorable price-performance ratio
and most importantly - what counts:
very good optical quality - that really convinced me.
At low dimming is obtained a very uniform sharpness across the entire image to the brim
The brightness distribution is remarkably uniform
The color rendering is very natural -
The lens does not have versteccken behind many times more expensive brand lenses - in terms of optical quality can keep it loose.
As a fisheye lens is an exception anyway I can to anyone who does not grab the same to expensive brand lens will only recommend this cheaper alternative. It's great fun to work with and truly eröffet new perspectives.