• UPDATE



    The forum will be moving to a new domain in the near future (canonrumorsforum.com). I have turned off "read-only", but I will only leave the two forum nodes you see active for the time being.

    I don't know at this time how quickly the change will happen, but that will move at a good pace I am sure.

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Hi,
I currently own a 7D which is my second body after a XSi that was my very first dslr. I am planning on upgrading to a 5D Mark III before the end of the year but I cannot keep the 7D so my EF-S lenses will become useless.
Here is my question: A friend is selling her Canon 28-300 L and I am thinking that this could be a great upgrade opportunity to move from my EF 70-300mm f/4-5.6 IS USM and have a single EF lens for travel with a great zoom range and L quality. Is this right? Will I get better performance than with my 70-300 USM and my EF-s 17-55 f/2.8 (which the 28-300 would also replace)?
My current lenses are:
- Canon EF 50mm f/1.4 USM
- Canon EF 100mm f/2.8 Macro USM
- Canon EF 70-300mm f/4-5.6 IS USM (selling it if I get the 28-300 L)
- Canon EF-S 17-55mm f/2.8 IS USM (selling it when I get the 5D Mark III, but I will really miss this lens (maybe getting a 24-105 if I don't purchase the 28-300... options are welcome)
- Sigma 10-20mm f/4-5.6 EX DC HSM (which is not going to work with the full frame and I will miss... for sure I will end up getting a Sigma 12-24)
Thank you!