Sigma DN 19mm f/2.8

best 19mm i ever had use it on A7Rii for lightweight travel , mountaineering backpacking where every ounce counts. I use it in full frame mode (i have aps-c turned off) because this lens can give you approximately equivalent focal length of 21-22mm after cropping out dark corners. iT can give you wonderful sharp panorama using 19mm in a final ratio of 1:2 panoramic format. If you choose to use in APS-C mode you get about 28mm equivalent image. either way extremely lightweight sharp and fast travel lens and great value

Sigma 19 2.8 is a winner I own the Sigma prime lenses 30MM, 60MM and now the 19MM. The 19 is the older non art version. Same optics as the newer art version. The only difference is the rubber manual focus ring instead of the smooth aluminum ring on the art version. Quality optics. Very sharp. I am using a sony a6300 and the auto focus is very quick. Manual focus also is smooth. Photos are great. Very nice wide lens for indoor and outdoor use. Very good Macro lens. This lens is not optically stabilized but because it is so wide at 2.8 and the 19mm fstop, it does not really need stabilization. It makes a great video lens for close up or wide angle use. I use a power gimbal stabilizer for videos most of the time but when out in the field and not having it with me, the 19 can do in a pinch. I highly recommend this lens. Great value and great sharp photos makes for a very happy me.

Excellent product Comes with a transport "case", a "sun visor" dont know the tecnical term..image is sharp and it focuses very close (10-15 cm). Overall good quality, tough in my 4 days of use it once refused to open... had to disconnect it and reconnect but it works very well.