Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Does anyone know why Amazon says  this won't work with the D7100?  I thought any F-mount lens will work on any F-mount camera?
Document: Great lens, very heavy. Need something to mount it to a tripod better. I use it with my Nikon D80. Anyone have any suggestions on how to mount it to a tripod better that the little lever that comes with it?
It is purpose-built, worry-free strong, and the mass gives stability to handheld shots. It's big yes, but so is DeMarcos Ware, and he gets around! It is easy to hold, and handles very well, perfectly matching the heft of the D800. (Get a good comfortable strap-sling!) I thought the perma-tripod mount would be an issue.
pls let me know if anyone has any question. Thanks guys, keep clicking!Note: if you are considering other brands, cheaper option but still looking for latest technology i think sigma 70-200 can be a good option. per Mat G's review it's faster and can help you minimizing ghost and flares comparing to it's competitors.
I still have the receipt for it and back then I paid $1150.00,  so this is a super deal. Love the lens. It takes fantastic photos. I really enjoy using it. Have not had one bit of trouble with it and have used it going on 13 years. Mine was made in Japan. Don't know about now-a-days. Went from film to digital camera a couple of years ago and still works like a charm.
This lens is THE lens to own if you want to shoot indoor sports. The newspaper I work for has me out on a lot of volleyball, hockey and basketball beats, and this lens does not come off my camera. I have taken this lens out to soccer games and baseball games but use it mainly as back up. If you want to shoot these sports you'll want something up in the 300-400 range.
If you have an entry level DSLR like a D3100, this lens will still work, but you will need to manually focus it.I recommend this lens for anybody looking for an f/2.8, professional quality lens, but don't have or want to spend the two grand on a 70-200mm. I also only recommend this lens if you camera will auto focus it. This includes the following bodies (D90, D7000, D300, D300s, D700, D3, D3s, D3x).
Awesome lense.Satisfied with its working so far.Looking for good used wide angle lens for Nikon full frame camera.Thank you Amazon
Let me start by saying I wanted to purchase the Nikon 70-200 VR2 at first but just couldn't pull the trigger due to the price tag. My two sons play sports including indoor football and wrestle also outdoor baseball, football and soccer. Before I purchased this lens I was using the 18-105 kit lens that comes with the camera and tried to get up close so the flash would work. Due to the fast speeds more than half the pics came out blurry.
This is a top-notch lens, tack sharp and fast (f/2.8) across it's entire zoom range. The built-in tripod collar will save a lot of stress on your camera mount, you'll see why when you lift this sucker - it feels like a brick. On the downside, auto-focusing can be a little slow. If you have an older camera body with an underpowered auto-focus motor it may not be able to keep up with a fast moving target.
A signature was required so he had to hand deliver it to me. In this case, that was a feature. (This was not an Amazon purchase. )I let the camera warm to room temperature before I started testing it - an old habit from consumer electronics. I took a picture of each family member and noticed the pitctures really were bright. The speed of the lense really is obvious.
Answer: I tested the Amazon compatibility apps for your model of camera and my D90 and it's telling me it doesn't work for both of them.  I check on the Nikon website for the spec for your camera and the lens format, it's says they are compatible.  FYI - it is a heavy lens.  Have a good shopping!