[Sandipan Amboli]

Sir, I want to take up photography as hobby and gradually might consider taking up as profession. Currently i am using D90 body and current set of lenses includes 18-105 mm kit lens, 50 mm AF-S F/1.4G, AF-P DX 70-300 mm F/4.5-6.3 G ED and AF-S Nikkor 200-500 mm F/5.6E ED VR. I want to join your expeditions, but have noticed people using higher ranges prime lens for wildlife photography. Also now with the introduction of mirror len camera what lens should be opted for. I am considering buying one avg priced wide angle zoom lens and one medium priced prime lens of 500 to 800 mm range. Kindly guide.

I am indecisive between buying z mount lens and using converter or buy F mount, also the current set of F mount lenses can be used in a mirror less camera? It there a converter available.