Excerpt: I bought this specifically to copy slides with the Nikon ES-1 and my D7200. It works perfectly for that even though Nikon does not specifically recommend it. No other adapters or rings needed. I already have the Nikkor 105 VR, so I was going to sell it when I'm done copying slides. But..
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight
Excerpt: I bought this lens specifically for flower and macro nature photography, but I find it works great for abstract and walk-around photography. Even makes a great little portrait lens. You can get as close as you want or need and still have everything in perfect focus.
Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight
Summary: This lens is a great piece of glass if you're looking to upgrade from the kit lens but it isn't without flaws. It takes very sharp and almost crystal clear images especially when shooting macro. It can easily double as a great portrait lens if needed as well.
Excerpt: I purchased this lens to photograph my model building and nature images. I walk for exercise in the forest preserves and this lens is lightweight and does a great job of bringing in the minute detail of objects I and shooting. Wish it was the 105mm version.
Excerpt: 40mm is a nice "in-between" focal length, neither too telephoto nor too wide.
Pros: I am just getting to know this lens, and find that it occupies a useful space between the 35mm and the 50mm primes, albeit with less low-light capability. The 40mm is a good lens for portraits and a good, general walking-around lens. It's not my favorite prime right now (that would be the "nifty ...
Cons: Lack of low-light capability. Sometimes "hunts" to focus.
Excerpt: Good experience ordering, quick delivery. This is the first micro to 40mm lens I've purchased. Good Nikon quality lens. This is now my all purpose for sports, portraits to flowers and micro detail.
Excerpt: I purchased this to have a small lightweight lens I can cart around in the woods looking for photos. I have used filters in the past as well with good success. I poke the performance of this lens.