Since apparently last time I didn't provide enough information to garner even a single suggestion, I will try in this post to be more complete. I apologize if it's a long post, but I want to make sure that folks have all the information they feel they need to offer a suggestion. WHAT I WANT A really, really fast focusing lens, somewhere around 100mm, but anything between 50-150mm would be fine. I'm willing to entertain both primes and zooms. I ask because how fast a lens focuses is not a data-point most reviewers capture scientifically, other than, "seems fast to me". Though a f2.8 or better lens is preferable, I'm willing to sacrifice a 1-1.5 stops for focus speed, since the bodies I'll be using them on produce reasonable results at "high" ISO. WHAT I'LL BE USING IT ON Usually on my D700; sometimes on a backup D300 body. Both bodies are well configured, and I have a reasonable technical knowledge of each, including how to set up 3d tracking continuous servo focus. I also know that if I don't set these up correctly it can cause abnormal focus hunting in challenging lighting conditions. I generally set up the camera appropriate to the conditions of the subject. I frequently use focus tracking, because, well, folks move. However, they are not usually camouflaged, or using “Predator-Like” cloaking shields. I almost always use point focus. WHERE I'LL BE USING IT I'm what you wanna call a columnist (with a highly under-paid editor, as I'm sure having said that, someone, somewhere will find some grammatical, punctuation, or spelling error in this post, as use the previous as a reason to "ping" me. All I can say there is: dude, congrats on memorizing the Chicago Manual of Style... I'm sure it will come in handy). I bring that up, only because, well, magazines and blogs and such that I write for don't like paying photographers any more than anyone else does anymore. As such, I often have to shoot my own art. This means IQ is relatively important. I usually take photographs of people doing things that people do (eating, drinking, dancing, glaring at me suspiciously, coming over getting ready to hit me, and in general carousing in circumstances where I have little to no control over lighting). Now, I tried getting me one of those fancy-schmancy mini-LED flashlights --the kind cops use to burn out the retina of kids caught making out-- but when I use that to try and help the lens focus it irritates the natives. Flashes also tend to disturb my subjects, causing me to not be able to capture them authentically in their natural habitat (and sometimes gets me kicked out of said venues). That said, I have been known to keep a PW'd speedlite in my pocket just in case. I have considered the 80-200 AF-D, but find that lens to be too large and mostly useful as a battering ram. I have also been known to take pictures of my kids, who, when I grab my camera, seem to suspect I’ve metamorphosed into some kind of alien paparazzi as they regard me with equal parts curiosity and fear & suspicion. In almost all circumstances I’ll be shooting human moving subjects indoors in available light from 10 feet or less away. My current preferred lens is the AF-D 50 1.4, and I find it slow-ish. I’ve tried the new AF-S version of that glass to no great improvement. BUDGET Up to 1K I'm fine with good used glass, so out of circulation lenses like the AF-S 24-85 (which I just bought) are options. WHAT I'LL BE WEARING. I generally prefer to dress similarly to the natives, finding it easier to fit in. I have considered wearing a tinfoil suit as a means to direct more light to my subjects, but that usually just gets me kicked out of where ever I might be going including my own living room. Though I will say that the children do seem to be enthralled when “Daddy wears his crazy hat”, I preserve that mostly to keep the CIA from reading my brainwaves. I will say this, though, on the completely irrelevant subject of attire, suits are underrated. Not only will they gain you entry to just about everywhere, but are highly mobile and flexible attire, and when worn with boxer shorts provide the kind of “freedom” that can ordinarily only be gained while shooting nude. WHAT WE’LL BE HAVING FOR DINNER. I am explicitly forbidden from having a camera with me while at family dinner, though this is one of the rare shooting opportunities when the kids are locked down in their chairs like death row inmates at Sing-Sing. When shooting folks other than my children, I’m generally not permitted to eat either, though I often stuff my pockets with hors d’oeuvres and Kashi trail mix bars. I find the weather sealing of the D700 to be sufficient to protect it from most of the foods I eat or spill on it, and I understand that dipping a lens in a fruit smoothie might effect focusing performance, I promise to be careful so we shouldn’t consider these possibilities when making recommendations. My favorite food is macaroni and cheese, preferably from Twin Peaks. WHERE WE’LL BE SLEEPING Having spent five years of my life wearing green and living in a muddy hole in the ground, I refuse to sleep anywhere other than a hotel anymore. Me and my gear, while not pampered, are usually protected from the elements. Though I have to say that some of the Parsian hotels I’ve stayed in lack sufficient climate control to ensure a completely consistent humidity and temperature. Nevertheless, from my research, they are well within the operating limits of most modern camera gear. WHO WILL BE JOINING US There is this smoking hot girl (waitress at the afore-mentioned Twin Peaks) that I’d love to hire as an assistant, but the wife objects due to her lack of qualifications. Also, since we travel on a tight budget, its usually just me. I do drink a lot though, so we should factor in the ability to operate while impaired, as well as resistance to drops, spills and such. IN THE EVENT OF AN OUTBREAK OF ZOMBIE-ISM I will be locked in my saferoom, with an AK, and .45 USP. In the event that those break down, or I run out of ammo, it would be nice to have a lens that could be used as a blunt-force weapon. I will, however, otherwise, not be engaging in photography, instead I’ll focus on surviving as long as I can until the National Guard arrives. I will leave the Pulitzer opportunities to you. That said, opportunitistically, I might take a photograph or two, though I suspect any lens recommendation will do as most zombies are slow moving and not photo-shy (except those fast moving ones from 28 Days later – I hate those).