About to drop some cash on a couple of lenses but I wanted some honest opinions. I currently have a Tamron 28-75mm 2.8. It's been a great performer, but I'm thinking about upgrading it in my up coming spend. I'm thinking about switching to a new Tamron 24-70mm 2.8 VC or a used Canon 24-70L.
They both appear to be great performers. I've used the 24-70L in the past on an XSi and honestly I wasn't blown away but now on a 5DII and/or 50D I'm hopeful to get better results from it. I prefer primes for portraits, which is why I'm also getting a 135L to accompany my 85 1.8, but after second shooting a wedding with a friend of mine a couple weeks ago I realize that the versatility of a fast zoom in the 24-70mm range could be very convenient coupled with a 70-200mm (another upcoming purchase).
So bottom line question is: would you switch the Tammy 28-75 for a 24-70? And if you would, would you go with a new Tamron 24-70 VC or a used 24-70L?
**edit**
IS or VC is not a necessity