Sigma 120-400 or Sigma 150-500 ??

Which one for wildlife & birds ??my hands are strong but old,,B& H price on the bimos is $869, today and the 120-400 is $899. I just want a good wild life lens and High priced Canon are too much $$ Thanks Ron

For birds I'd get as long as possible every time, even then it'll be too short!

the 150-500OS is a good lens...i'd get it over the 120-400OS

Thanks every one
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Ron