Ok, so I finally made the move and got a 5DIII to be my main body for wedding photography (I am slowly starting). My 70D will become my second body. I do have the 15-85 FE-s, but I find that it can be quite slow in low light and I want to upgrade. I do have as well 30mm sigma 1.4, Canon 50 mm 1.8 STM, Canon 85mm 1.8 USM, Canon 100mm 2.8 Macro and Canon 70-200 4L IS.
My thoughts are as follows:
1. Buy 24-70 2.8L MkI for the 5D. This will let me use my 5D almost all the time and I can use another lens on the 70D. Problem is that if I use the 70-200 on my 70D it may be too long and the ISO capabilities are not as good as in the 5D. I could just stick primes on it and change the 24-70 for the 70-200 on the 5D when needed.
2. Buy 17-55 2.8 for the 70D and keep it there. Use the 5D for 70-200 and primes
3. What about 24-70 f4? I think 2.8 is a bit too open for 2 or more people in the photo, but it takes double the light. What are your thoughts?




