The one thing to look out in a 135mm is coverage. I had the nikkor for many years and and thought it was great. Then I started using more movements and found I was running out of image circle. I was really fond of the 135mm focal length, and looked at the 135 sironar s as a replacement, but ended up getting a150mm sironar s and a 120mm nikkor sw to fill the gap. Very happy....I guess my point is the 135 nikkor w is great and suited me for many years. You may find at some point you desire more movements than it allows...but maybe not. You mention 210mm also. That is probably my second favorite focal length. Any from the big four probably has plenty of coverage and will be a great lens. I find that you can do a lot with just a slightly wide and slightly long lens.
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