Re: SMCP-F 100-300/4-5.6 vs Sigma 70-300/4-5.6 comparison

[Fred]

> Takes the place of the ATX 100-300 when I don't feel like lugging
> quite that much weight.

Any preliminary thoughts on how the F 100-300/4-5.6 compares to the
ATX 100-300/4, Don?

Fred