Bests & Worsts Reviews from Amazon

Great value for the price. I purchased lens to work in conjunction with my Sony NEX-5t for night time photography. Although I am still learning the lens in terms of finding the perfect infinity focus (most lenses actual infinity focus is just back from the hard stop setting), on only my second outing to photograph the Aurora Borealis the lens worked very well. I was amazed the amount of light which was captured, which in turn allowed me to shorten the exposure times dramatically and better capture the Northern Lights. These two photos were taken the night of October 3rd with my Rokinon on a remote lake in northern Minnesota. The settings in both instances were an ISO of 3200, F2 and 1 second for the first image and 2 seconds for the second. Update: August 10, 2016 After using this lens for even more night photography sessions, I am even more pleased. However, it is important to note that true infinity focus for this lens is NOT the hard stop infinity setting. The best spot for me appears to be just a hair to the left of the infinity symbol on the lens. Having now made this adjustment, my northern lights images have improved. In addition, I have been pleasantly surprised to learn this camera allows me to take Milky Way photos w/o the need for stacking images. Very cool. I will add a few pics I just took this August in northern Minnesota near the Canadian border. The lens was up to the task ... including capturing a unique Aurora 90 minutes before dawn.