frjeff wrote:
I currently have the 24mm f/2.8 and the 50mm f/1.8. All NIKKOR.
I need/want either the 85mm or 105mm to better fill the frame. I do not do portraits, but do cityscape, landscape, etc.
Help me with my decision please.
An old suggestion for a kit of primes was to double each focal length... or at least as close to that as possible.
Assuming you're using them on a full frame camera, in your case it would be: 24mm, 50mm, 105mm.... 200mm and 400mm if you wanted even more telephoto.... 12 or 14mm if you wanted wider.
You might want to consider a 105mm f/2.8 macro lens. Sigma makes a really good one that's equal to, but a lot less expensive than the Nikkor. That would give you both a short telephoto and the ability to do close-up and macro shots, should you wish to do so. Note: There are 105mm f/1.4 lenses, but they're more portrait oriented, as well as rather big, heavy and expensive. There also is a Nikkor 85mm f/3.5 macro lens, but it's DX.
There also is a Tokina 100mm f/2.8 macro lens that's decent and quite affordable. However, be aware it's slower focusing AND the Nikon mount version lacks an in-lens focusing motor. So it only able to autofocus on Nikon cameras with the in-body focusing motor. It also does NOT have image stabilization... while all the other lenses I've mentioned here do.
If you prefer slightly shorter telephoto, there also is a Tamron 90mm f/2.8 macro lens that's pretty nice. However, they recently discontinued it in Nikon F and Canon EF mounts. So you would be shopping for used or new-old stock. Just be sure to get the latest version. Look for model #F017, which is all black except for a silver ring at the lens base, adjacent to bayonet mount. This is the very best of a long series of versions Tamron has made since the 1980s.
https://www.bhphotovideo.com/c/compare/Nikon_AF-S_VR_Micro-NIKKOR_105mm_f_2.8G_IF-ED_Lens_vs_Sigma_105mm_f_2.8_EX_DG_OS_HSM_Macro_Lens_for_Nikon_F_vs_Nikon_AF-S_NIKKOR_105mm_f_1.4E_ED_Lens_vs_Nikon_AF-S_DX_Micro_NIKKOR_85mm_f_3.5G_ED_VR_Lens/BHitems/424744-USA_806375-REG_1269658-REG_656971-USAHere's an article comparing a number of the macro lenses head to head (not the Tokina, unfortunately):
https://petapixel.com/2020/04/15/macro-lens-test-canon-nikon-sony-laowa-sigma-and-tamron-compared/There is a video mentioned in that article, which I recommend viewing too.