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Input:
Question: Used to shoot a D80 - 18-135mm for light architectural and close-up florals. Now a D5100 with the 18-55mm & don't like "macro." Will this work well?
Document: I bought this lens for my D7100. Until now I used the 18-105 and although the 18-105 is a very good lens, I didn't think it resolved the sensor capability of the D7100. I like to work with what I have, but ultimately decided to switch to the 16-85. I used it last night after I received it and I was amazed. I went for low light shots and this lens is fast, fast, fast. It produces an incredible sharpness.
*  This lens isn't a low light lens. Especially at 85mm where your max aperture is f/5.6. If you want to shoot in low light there a myriad of 50mm primes to choose from. *  If you are walking around with the lens pointed down the barrel will extend on it's own. I get nervous walking around with it like that so I'm putting a battery grip on my D80 to balance it back up.
I use a D80 and had previously used an 18-105. I also use a 50 1.8, a Tamron 90 2.8 macro, and a Nikon 80-200 2.8 zoom. The 18-105 kind of put me off the cheaper Nikon zooms, but after reading reviews I purchased the 16-85, and I'm glad I did. As a newer lens, it has all the new optical technology, and the VR is an outstanding feature - it really works!
This lens is just right for me. Ideal for indoors, at museums, at the zoo, in the garden. It is a very good macro lens for casual use without special accessories... great for small flowers, bugs, coins, jewelry. None of the problems that come up when using long telephoto lenses. No creep when pointing down. Very light. Works great on my Nikon D80.
So I miss that macro and close focus and 2.8 (which has stellar reviews ) price is bit higher end compared to used version of this lens. Used Sigma was not avlbl for cheaper at that time.
That combination, although more expensive, provides usefully greater range at both ends than the 18-200mm without quite the optical compromises the 18-200mm seems to require. Nikon's 28-200mm "G" lens could be another very useful complement to the 16-85mm as it has a reputation for optical excellence, good macro capabilities and is light and fairly inexpensive.The bottom line is that the 16-85mm is a no-excuses basic lens that serves very well for quite a broad scope of basic photography.
Indoor it does not work well without flash unless you crank the ISO very high(go for the 35mm f1.8 for indoor and low-light pictures).
It has that extra 2 mm at the wide end for photos of architecture & landscapes and enough reach to cover a reasonable variety of photographic opportunities. It even works well as a macro lens. I'm uploading a shot of an Imperial Moth Caterpillar shot on my deck at close range and 85mm. The photo will give you an idea of how good the bokeh is too.All things considered, it is a really wonderful lens and well worth the price.
Maybe you can, but your father shouldn't try it. It has VR which is very handy, but you will want a good tripod.Pros:  Have you ever taken beautiful shots in wide angle and found the corners of the pictures have blacked out? When I bought the D5100 kit with the 18-55mm lens the lens took decent pictures at 28mm. Wider than that you don't want to display your great talent. No such problem occurs with this lens.
At the wide end it gets a bit soft in the corners and vignettes a bit, nothing at all objectionable. This lens is not a speed demon, indoor natural light is not a friend but it responds quite well when ISO is pushed with wide open f-stops. Retaining rather good image quality in difficult conditions.Not being a speed demon limits it's bokeh, basically, it doesn't have any, well maybe if you get close at 85mm but even then it's not pleasing.
Answer: it is a really wide angle lens I love this one. It keeps its natural looking aspect ratio.