my buddy wrote:
Hello everyone. I like to shoot flowers, wildlife, sports and landscape. I have a Tamron 70 200, a Nikon 28 70, and a Nikon 55 200. They are all used lens. Being on a very low budget is there any other lens I should try to get?
You don't mention what camera you are using, but I assume it is a DX (crop sensor) model, since you have a crop-sensor-only DX lens (the 55-200).
I'd recommend you consider a Nikkor 10-20mm DX lens. That's a wide angle and it's the most important lens I'd find lacking in your lens line-up.
The 70-200 and 55-200 are duplicative. I'd test each and decide on keeping and using one or the other. Depending upon their age and condition, you might be able to sell off the extra lens for enough $ to help with the purchase of the wide lens.
The Nikkor 10-20mm is very affordable for lenses of that type, at just over $300 new.
IMPORTANT: The only concern is what camera you're using. The 10-20mm is an "AF-P" lens, which isn't compatible with all Nikon cameras. For example, it's fine with D7500 and D7200. The D7100 requires a firmware update to be installed, so that it can work with the lens. Even then, the D7100 is not entirely compatible with an AF-P lens (cannot turn off the lens' VR). The D7000 and earlier are not compatible with any AF-P lens.
Depending upon what camera you have, before running out to buy this or any other AF-P lens, you should look into this yourself. There are lens and camera compatibility charts at the Nikon websites, as well as at Nikonians.org and some info at Ken Rockwell's website. It's a good idea to consult those before any used lens purchase, since there are all sorts of compatibility issues and limitations related to the F-mount cameras and lenses.
If your camera is incompatible with the AF-P lens, there are alternatives. The other two ultrawide Nikkor DX lenses are ridiculously expensive (AF-S 10-24mm and AF-S 12-24mm), so I'd recommend looking into some of the third party lenses such as the Sigma 10-20mm, Tokina 11-20mm and 12-28mm, Tamron 10-24mm. Those are reasonably affordable. Shopping used, the earlier Tokina 12-24mm and 11-16mm are pretty fine, too. There was an earlier, smaller, less expensive Sigma 10-20mm, too. Tamron also had an earlier version of their 10-24mm, without the VC stabilization on the current lens. Of them all, the Tokina 11-16mm is the sharpest... but it's also the most prone to flare and has that super narrow range of focal lengths. The 11-20mm that replaced it is improved in nearly all respects.
Wide lenses can be useful for many things, but landscape photography is quite possible at the top of the list. The widest you have now is 28mm, but that's only "slightly wide" on a DX camera.
You are pretty well set for many other things.
Some might suggest a macro lens for flower photography, but in my experience that's rarely needed. Most flower photography simply isn't that high magnification. If you are having trouble getting close enough and high enough magnification with your 55-200 or 70-200, you might instead just get a set of macro extension tubes (the Kenko set is top quality and sells for around $130 new.... Vello makes a somewhat more plasticky set that sells for around $75... Don't buy the Nikon extension tubes. They're expensive and don't fully support all of a modern lens and camera functions. Also don't buy the really cheap ones... under $25. Those are no good for use with modern lenses, should only be used with vintage lenses that have manual aperture control.)
Macro extension tubes come in different lengths and are installed between the lens and the camera to make the lens focus closer. To get higher magnification, you add more extension. They can work very well, especially with short to moderate telephoto focal lengths. A set of macro tubes are lightweight, compact too... and in the Nikon F-mount can be utilized with any lens you can fit to your camera, so they're quite versatile.
Eventually, if you are really serious about wildlife photography, you may want to consider a more powerful telephoto such as Nikkor 180-400mm or 200-500mm, Tamron or Sigma 100-400mm or 150-600mm. With these you may also want a decent tripod or at least a monopod, since they're fairly large and heavy. (Note: The Sigma 100-400mm is one of the smaller and doesn't have any provision for a tripod mounting ring. The Tamron 100-400's t'pod ring is sold as a separate accessory. All the other lenses include a tripod/monopod mounting ring).