adaptor Sony A6000 and Canon lens for slow flying birds and casual bird photogra[hy?

[WontonZ]

Hi

I'm new to this forum and I have a few questions I want to ask. I'm currently on the Canon 400D with the 55-250mm f4-5.6 IS STM. I'm thinking about switching to the Sony A6000 with the 16-50 and 55-210mm kit lens. My problem is: Would adapting my current 55-250 onto the A6000 body affect the auto-focus performence by a large margin? I'm on a really low budget (as you could probably tell from my current kit) and I can spend preferably under 100 or at most around 150 USD on the adaptor. Also, am I better off just getting the 55-210 sony lens and selling the Canon? around 700 USD is all I have for a complete kit so yeah... Would appreciate any advice.

[BrentSchumer]

I didn't like the 55-210 lens (or the kit lens for that matter) and would rather put that $300 towards a better lens. Can't comment on the Canon zoom.

[WontonZ]

k Thanks!