Canon’s spiffy, white tele has a hefty weight, but also great optics and features, including image stabilization. High price means it’s for serious nature and sports photographers only.
Standout Spec: Four AF-off buttons on the barrel lock focus.
Pentax-DA 55–300mm f/4–5.8 ED
Pentax 300mm f/4 DA* SDM
Sigma 70–300mm f/4–5.6 DG OS
Sigma 300mm f/2.8 EX APO DG HSM
Tamron 70-300mm f/4-5.6 LD Macro