rshemsworth wrote:
I am considering changing from my Nikon D7200 to a full frame camera. I currently use a Tamron 16 - 300 zoom lens with the D7200. Is there anything similar for a full frame camera, with a similar size and weight?
Ron
The equivalent of a DX 16-300mm lens for full frame (FX) would need to be a 24-450mm lens.
No 24-450mm FX lens exists.
The closest is the 28-300mm already mentioned. It will be bigger, heavier and at the current sale price costs about $200 more than your 16-300mm. And, obviously, the 28-300mm doesn't give you as wide a wide angle or as long a telephoto focal length as your current lens.
If you want the same range of focal lengths on full frame, you will need to buy and carry around two lenses.
You can get close to the same range with...
Nikkor 24-120mm plus a 100-400mm (Sigma or Tamron).
Nikkor 24-70mm plus Sigma 60-600mm.
Nikkor 24-120mm plus Nikkor 200-500mm.
Nikkor 24-120mm plus Sigma or Tamron 150-600mm.
Tamron 35-150mm, plus Nikkor 24mm f/2.8 and Nikkor 200-500mm... Buy a backpack. That would be about $2500, 8 lb. of FX lenses replacing your $629, 1.2 lb. "do it all" zoom.
There are many more options, but they're all going to be a lot heavier, bulkier and more expensive than what you use now.
Good news is that you can probably get top dollar for your D7200 whether you trade it in or sell it outright yourself, because it remains very popular even though Nikon has discontinued it. In a number of ways, the "old" D7200 is superior to the D7500 that replaced it. (Note: The D7500 does have some nice upgrades.. But was downgraded in other ways.)
Quite frankly, it's very possible you'd be better served keeping your D7200 and instead buying better lenses to use on it. Unless the camera simply can't do something you need, if your goal is "better images", you are going to see little gain dumping a bunch of money into an FX camera and FX lenses to use on it. Unless you are making really large prints (bigger than 16x24"), you could see much greater image quality improvements getting two or three higher quality lenses to use on your D7200.
Your current scenario is something I think is common.... a high quality camera fitted with a somewhat mediocre lens. Peoples' results are almost always better when they put more of their money into the lenses and less into the camera they use those lenses upon. But all-too-often the opposite is what happens.
Classes, seminars, how to books, photo safaris and camera clubs are other low cost ways to get the best out of what you've already got or, perhaps, out of a better set of lenses on your current camera.
There certainly are exceptions where a full frame/FX camera would be a better choice... But the vast majority of users would be better off sticking with APS-C/DX cameras. Keep in mind that your D7200 can use both FX and DX lenses, and is compatible with most Nikkors made the last 50 years or so, including earlier AF systems.
I don't shoot with modern Nikon cameras, so really don't feel comfortable recommending what might be some better quality lenses for use on a D7200. I bet some other folks here on UHH can advise, though.