Z5ii lens for motorsports under under 1200
Hello looking for lens options for Z5ii. Very much a beginner and would probably be on the bleachers for pro days and could probably get decently close for HPDE days . Would like to do it as cheaply as possible
Looking at tamron 70-300 vs 50-400
70-300 has no image stabilization. Is that needed for panning shots ? Just want to get out there and practice . Only lens I have is the 50mm 1.8s