But is it chipped???? I read a while back the Laowa 12mm f/2.8 Zero-D with a lot of hype down at the bottom was not chipped and later there where some problems. When I started with the Rokinon 14mm f/2.8 (unchipped) in 2015 for Milky Ways it gave no lens info and no one had a correction for a year. So the little roll on the horizon could not be corrected even by hand, even putting the Rokinon profile downloaded from the manufacture did not work in Lightroom. Even today a file has to be run through PS/Lr before importing to another program. SO you want smaller just try the Sony SEL1018 f/4 and if you want that 10mm get the Voigtlander 10mm f/5.6 I used both for a year before the Sony SEL1224G and was so much better than the Rokinon (even the 12mm Fisheye) star streaking in the upper corners. Yes the SEL1018 is a little soft on the sides and some color noise in the lower corners but with good experimentation you will overcome it, I did and learned a lot, and my stars looked so much better. Oh a bonus the SEL1018 takes screw on filters for those moving water photos deep in the woods, just do not use a VR filter on a sky – too much sky does not work too well. But the Sony SEL1018 f/4 is AF, IS and Chipped BUT ever so, so, SMALL. Even being a APS-C lens it works in full frame mode just mark, with some nail polish, the upper 12mm side and take out the light shield and you can use between 12 and 18 FF and switch to APS-C mode and get the 15mm to 27mm great for a walk around invisible lens like an old film lens. I will never sell mine!!!! Best deal.