Opinions and perspectives desired. I have been shooting with a 60D since it came out. My main lens for that camera is the 15-85. About a year ago, I bought a 6D. In that time, I discovered the benefits of fast(er) primes on the 6D. So far I have gotten a 35 IS and a 100 f/2, and have just ordered a refurbished 50 1.8.
I plan to keep the 60D for the extra reach, when needed, with my 70-200 2.8 and 100-400L. I was also going to keep the 15-85 for general use. The 15-85 is an enigma. Since I plan to buy a general purpose EF zoom (24-70 f/4 or 24-105) in the near future, is there any reason to keep the 15-85? The primes I already have are better, even on the 60D, than the 15-85 is. If I sell the 15-85, I can just use whatever EF zoom I buy for the 6D, on the 60D as well. Won't either of these EF zooms provide better IQ (on the 60D) than I get from the 15-85? Is there any point to keeping the 15-85? I'm not wealthy, but I really don't need the $400 or so I'd get from the 15-85.
Any thoughts?


