>>2890350The quality is as good as it needs to be.
The rear of the lens doesn't sit TOO close to the sensor, the whole assembly is only around 2cm, there's little problem with colour in the corners but it does vignette quite a bit (compact symmetrical designs do this, luckily it's a nice even smooth falloff that isn't distracting)
The lens is actually from an XA2 and the aperture mech was removed (I like f4, the lens was f4, it's never going to be for critically sharp photos, so fuck it, keep it lomo)
The bokeh rendering is definitely very different to any off the shelf lens, it's nervous yet buttery soft at the same time, the lens definitely performs best focusing around 2 to 4 metres away.
Chromabs are visible, but not harsh definite lines with bright colours, more like a slight coloured smear, it's also awful with flare resistance and blooms easily, as can be seen here on the glints of the pots
>>2889913Centre sharpness in flat light is actually phenomenal and easily outresolves my legacy Nikon 28mm in the middle 25%
Attached is another shot that shows the vignette and nature of the lens, it's saved off facebook as I'm not by my pc, so try and ignore artifacting if there is any.