Hi everyone, need advise on which telephoto zoom to get? The Sigma seems to be half the price (based on Amazon pricing/havent had chance to check local prices) of the Pentax and looks tempting. Appreciate any comments and advice. Thank you.
Sigma 70-300mm F4-5.6 APO DG Macro
or
SMC Pentax-DA 55-300mm F4-5.8 ED
Sigma 70-300mm F4-5.6 APO DG Macro
or
SMC Pentax-DA 55-300mm F4-5.8 ED