I need a lens to take indoor sports pictures (basketball). The 85mm 1.8 gets good reviews but before I pull the trigger I don't want to rule out the 100 2.0 and 100 2.8 macro. How do these 3 lens stack up. I know the 2.8 has macro capabilities as an added bonus. I currently have a Sigma 105 macro but it's slow focus speed is not suitable for basketball so I could sell it if I choose the Canon 100 2.8 to recoup some of the cost. Thanks.