It might be best to start a new thread on this topic rather than hijack one of the few non-Nikon threads here to ask Nikon gear questions.If anyone does that it would be Nikon But I just sold my Z 400 4.5 and Z 180-600 and purchased the Z 600 f6.3 I'm impressed that's for sure, But what lens you think I should complement it with I was thinking of the Z 100-400?