Hello all - I'm currently using a SONY a58, a decent mirrorless camera which I got for a good price a few years ago. However, I'm thinking of buying the Nikon D7500 when it's released next month. Both are APS-c type formats. Last Nikon I owned was an FTn in 1971 -- so I've been "out of the Nikon world" for a long time! I'm wondering which DX format lenses I ought to be considering? One of my main interests will be concert photography at -small- outdoor venues (bluegrass festivals, an entirely different world apart from rock bands in big venues, bar music, etc.). During the day these are "natural light" (no stage lighting). At dusk into the evening there is lighting, but generally not of the quality as one would see at a "large, high-priced" venue. I've found that using a 70-300 Tamron with the SONY gives a pretty good range, which allows me to keep "back in the audience" slightly, but still able to get tight closeups because the crop factor results in the "300" actually producing an image equivalent to about 450 (in "35mm"). I see that Nikon offers a DX 16-300 with vibration reduction. Expensive but could serve as a "one-lens" solution, at least with which to get started. Has anyone used this? Could you comment? If not that, I was thinking: 1. Nikkor DX 18-140 VR (can be bought bundled with camera) 2. Nikkor DX 70-300 VR These two might be "all I need". BUT -- I've read that the 70-300 loses sharpness above, say, 220mm or so. Does anyone own this lens? Could you comment? Are there 3rd-party lenses that are as good, or better? If so, which ones?