The DX 10-24 on my D800 is not "crutch and tape." The D800 in DX mode is only very slightly shy of the resolution my D7200 gives, and has much better low-light capability (as most full-frame cameras do.) ISO 3200 is completely usable on the D800, where ISO 800 is just nasty on the D7200. As said in another thread, "Get the photo." So if I find myself in tight quarters in low light, I have no problem whatsoever putting the 10-24 on my D800, and getting phenomenal images that I'd never get with the D7200. The 28mm f:1.8 might be a better choice in that situation, but I don't happen to have one.