At the moment my kit consists of Canon 6D, Canon 1100D, EF-S 10-18mm 1: f3.5-5.6, EF-S 18-55mm 1: f4.5-5.6, EF 70-300mm 1:f4-5.6, EF macro 100mm 1:f2.8.
Is the Canon EF 24-70mm f/4L IS USM lens the best option to fill the gap I have in FL for my 6D.
This would be a big outlay for me so the Canon EF 24-70mm f2.8L is not an option (sadly).