09-08-2016, 08:24 PM
The 15-85 has a lot in common with the EF 24-105/4L used on a FF-camera.
Both have a really useful range, both have IS and USM ... both make
noticable compromises to provide the range they have ... but at the end of the
day, both are very useful lenses if you look for a one-lens-only kit.
If that is the case for you, the 15-85 might be a good idea, else I do not
see you having a big advantage over what you already have.
Just my thoughts .. Rainer
Both have a really useful range, both have IS and USM ... both make
noticable compromises to provide the range they have ... but at the end of the
day, both are very useful lenses if you look for a one-lens-only kit.
If that is the case for you, the 15-85 might be a good idea, else I do not
see you having a big advantage over what you already have.
Just my thoughts .. Rainer