Can I buy one of the EF 100mm Macro lens instead of EF 85mm f/1.8 USM?

ms18 wrote:

I use EF 50mm f/1.4 USM with APS-C to take photos of portraits and Indoor sports. Now I'm planning to replace it with a lens with a 5D (Later upgrading to either 6d or 5d mk iii). Main reason of this replacement is inadequate focus speed and the next is 50mm f/1.4 is not good wide open but that is the depth of field I would like to have in some portraits. Next any way i want to move to full frame for indoor noise performance.
I was thinking about buying a EF 85mm f/1.8 USM. But later on i was planning on one of the Canon 100mm macro lens. Either the L version or Non L version. The 15mm focal difference is not a problem for me. I can adopt. I like the bonus feature of Macro. But my worry is how fast is the auto focus? The very first reason for this upgrading is auto focus speed. If the autofocus is capable same as EF 85mm then I would like to go for 100mm macro. Also let me know if there is a AF difference between L and Non L in 100 macro.

I have owned the Canon 100mm f/2.8 and now own the L lens and the 85mm 1.8. The Canon 100mm and 85mm give very different looks, personally I think the 85mm is nicer for portraits. It's not as sharp, the colours aren't as vibrant but it offers a much shallower dof and just looks better for portraits imo.

The 100mm is no slouch with focusing, but the 85mm is much faster. There is no noticeable difference in focus speed or image quality between the 2 100mm lenses, with the L you are paying for IS and weather sealing. If your planning on shooting macro in natural light its well worth it otherwise the non L is still a great buy.

You say you want the dof of the 1.4 in some portraits, but the macro lenses are only f/2.8, which is a big dof difference.

100mm Macro - Brilliant macro lens, very good portrait lens.

85mm - Brilliant portrait lens, no macro ability