I have wanted this lens for some time now and tried making due with some cheaper lens ie Tokina and Rokinon but while much cheaper in price, the coma and edge distortion bothered me to the point of buying one. I so far have zero regrets on this purchase and it is allowing me to get some very detailed aurora pictures that I have not been able to do so far with the quality of the field. Though, it makes sense after thinking about the premium telescopes(Astrophysics, Zambuto, ASA, and RCOS) I use for deep sky imaging so one can not cheap out on wide field or you will notice it and it will bother you eventually. It is a heavy lens but then again most of my telescopes are at least 30 lbs up to 210 lbs so don't cheap out on the tripod either. Mated to my Nikon D810, my wide field imaging is producing great results. I know most of the coma and distortion can be processed out but I personally like to get the best quality raw prior to any processing. Something I have done in the beginning of astroimaging. So far the lack of an easy filter system has not been a bother since I look for dark skies so I do not need to use deep sky filters and haven't did any daytime landscape images that could benefit in a polarizing filter but I believe there are a few options though a little pricey but still a workable solution.

I love this lens.. I can get super close and obtain striking photographs. I can also fit a lot in only a short distance is needed to fit everything perfectly. Although i am a beginner/novice at photography, lenses like this make me look like a professional. I am shooting on the D500 by Nikon, and I could not be happier with this camera. I am considering buying another full frame camera..FX... just for the heck of it.. I may give the D500 to my wife or daughter whichever wants it.

I waited to buy this lens because I'm not a professional photographer and am not generally into shooting landscapes or architectural photos which seemed to be the primary use among other photographers, but I'm glad I have it now. It takes very nice, sharp photos, and it does expand the range of possibilities, particularly when shooting outdoors. I recently took it with me to the Pierce Stocking Scenic Drive in the Sleeping Bear Dunes National Lakeshore in Michigan, and got a couple of nice shots.

I love this lens great in low light a little heavy but it’s ok . I will say it was worth the wait it’s not a cheap hobby.

I've been in Photography for 15 years and this lens is on my bucket list for years. I have now completed my so called trinity lens for my Nikon system. This is a superb lens for landscape and events, especially in a tight small venue! With an f/2.8 fixed aperture, you can't be wrong buying this lens! Excellent lens and this is always inside my camera bag! I included in this review my most recent picture taken with this lens!