So far I have a 50mm F1.8, But I want something a bit longer. I'm still going to keep the 50mm. I'm debating between a macro (Tamron 90mm, Tokina 100mm, or Sigma 105mm. Whichever is better) or the Nikkor 85mm F1.8. The extra aperture is nice on the 85mm, but not my main concern. My main concern is image quality (mostly sharpness). Does a macro lens provide better IQ for portriture? EDIT: Don't know if this is relevant, but the portraits are going to be outdoor. I also have a flash.