Im thinking of buying a

[billy320]

Sigma 736107 Sigma Zoom Normal-Telephoto 50-500mm f/4-6.3 EX APO DG HSM Autofocus Lens for Olympus SLR (Four Thirds)

any suggestions

[Frog]

The BigMa is loved by many. Don't have one but wanted one at one time.
Good for birders on a tripod, I hear.

[Atomic2]

the 300mm is not enough for you?! With the 2x teleconverter you have there, it should be more than enough for anyone I'd think.

[Jaedon]

The 50 - 500 never left my camera for over a year... until I purchased the sigma 70 - 200 f2.8. Now I bounce back and forth between them depending what I am shooting.

[Atomic2]

The 50 - 500 never left my camera for over a year... until I purchased the sigma 70 - 200 f2.8. Now I bounce back and forth between them depending what I am shooting.

You exclusively shoot telephoto?

[billy320]

Well I bought it,

[billy320]

I got the lens today, and is it HEAVY !!! it even comes with it own strap