Traveller_Jeff wrote:
Since upgrading from my long-ago bought D80, I have acquired a D500, D850, and D5. I also have a nice assortment of Dx and Fx lenses. However, I was always extremely satisfied with the flexibility of my first lens, the Dx 18-200. I would love to have a lens equal to that first one, that is, around 18-200mm, but in an Fx format. Is there one available from Nikon? If not, I may have to resort to other lens manufacturers. Thank you.
Traveller_Jeff
I've held off responding to your question, since Alan directly answered it in his reply right after your original post. Paul also provided you with a response and some good context just above.
I shoot with some, but not all of the same cameras that you have. After using only DX for many years (D200, D300), I bought a D810 because it was required for a workshop I took, and now also use a D850 and, after discovering that 46MP is complete overkill for lots of things, now also have a couple of D500s. I also have a 18-200mm Nikkor DX zoom, but have never really liked it very much. It is out of service right now with a bad ribbon cable and am looking for a replacement for it. By the way, these lenses have a reputation for spontaneous VR failure. That is unrepairable, as parts are no longer available from Nikon for this lens.
It turns out that if you are trying to find a replacement for your 18-200mm, there is an option. Tamron makes a zoom with that exact zoom range. I believe that the aperture is the same as or very similar to the Nikkor lens, but can't say for sure. The lens didn't seems very serviceable to me (focus ring all the way at the front of the lens, construction all plastic, but the retail price is only $250.
If you want a lens for your FX cameras with the same framing range as the 18-200, Alan correctly referred you to the 28-300 zoom. Despite not being a fan of wide-range zooms, I did look at that lens once. Yes, it has a wide framing range. No, it is not very impressive.
Paul's idea to consider the Nikkor 24-120mm zoom is a really good one. That lens is f/4 over its entire zoom range, has really good VR, and optically performs very well. It's just short of $1100 new, but I bought a used one at my local camera store for $425 a couple of years ago and a refurbished one from NikonUSA last spring for $495 (there was a little bit of adventure associated with that one, but everything eventually worked out).
When I travel, I take two cameras, a D850 and D500. Each one of them has one of these lenses. Last summer, I took a major trip to a convention with field trips and meetings and indoor activities. Those two cameras & lenses were all that I took. Either one alone would have been just fine. I did appreciate the extra wide angle capability of the full frame camera.
You don't give us much clue about how you use these various cameras, so our responses have to be in pretty general terms. My best guess is that you are going to keep both system and want to have the ability to select lenses with equivalent fields of view on pairs of cameras. That's sort of what I'm doing, with the exception of making the 24-120mm lenses my "base" lenses for both formats. If I need wider than that lens provides on a D500, I either make a panorama or grab the D850 instead.