I'm really glad to have found this little, actually astonishingly good gem of a lens for the L-mount system!
I'm using it on my Lumix S5M2, and I really found it delightful both to operate and in the picture it produces.
Many could argue about the fact that this lens has a very distinctive character, with subtle distortion, vignetting and the way it reacts to lateral and stray light producing flare.
Indeed if you're a professional looking for the clinical, aseptic, flat, total pixel-peeping sharpness rendering of high end lenses, it should go without saying that you won't find it here on this lens.
But, honestly, that's kind of the point, in my opinion!
SUPER fun and a pleasure to use (especially if compared to many polymer based construction lenses) and plenty sharp enough for it to be enjoyed and printed even quite large.
Obviously it hasn't got auto focus, so it'll take a little bit of practicing to nail every picture, but in this it'll be sure of help in one's journey of becoming a better photographer/videographer and the 10 bladed aperture that you get in return is really incomparable in terms of bokeh roundness and sun stars it gifts!
All In all, I really thanks Pergear to have made this lens for us all, and I really look forward to get the 14mm f/2.8 II because that looks to me to be an absolute banger too!
Only thing that needs a little bit of care is mounting and dismounting it as it basically has no way of handling it without grabbing either the focus or aperture rings.
Buy without fear, for the price really can't be beaten and I imagine it won't be anytime soon.
It has been deliver to me very well packaged, quite fast indeed and at least in my case, free of any additional charge on delivery!