So if 200, - can pay more, but should please be sure (I have added myself now) for Tamron 70-300 VC USD grab! This has a great image quality, a fantastic image stabilization (3-4 f-stops in practice!) And a ring-type USM with FTM. With 300, - the equipment is at least as a value-for-Pops as the Sigma here. Who is a little scarce on cash, get with the Canon EF-S 55-250mm IS also a value-for-Pops with recognizable better imaging performance like this Sigma here (but slightly worse than the Tamron, also the image stabilizer is not as good and it does not have USM).