I'm trying figure out a lens that will give me good service and improve my image quality from an equipment standpoint. Currently I have a 50mm f/1.8 MKI and an 18-135 EPS 3.5/5.6 IS. The three lenses I am considering are:
Tamron 17-50mm 2.8 non-vc
Canon 24-105mm f4/L
Sigma 17-50 OS (added to list)
Canon 17-55mm (added to list)
I use the 18-135 pretty much through all of it's length, but tend to work most towards the middle and in the wide angle region. I'm looking for a lens to more or less to keep on the camera all of the time. The 18-135mm that I have now stays on the camera 99%.
What I'm wondering is will I see a great improvement in image quality between those first two lenses and my current 18-135mm? Of those two I'm leaning more heavily towards the 15-85mm, but it is rather close to my current zoom...is the image quality of it that much better?
The Tamron gets good reviews for image quality, but whichever lens I get I hope to keep it a long time and I've heard the Tamron is built a bit lighter than the Canon.
Lastly, will the 24-105mm L lens "blow the other lenses away"? White box 24-105mm's can be gotten for close to the same price as the 15-85mm.
I'm a hobbiest and my shooting runs from street scenes to landscapes to people to...it's varied. I know a single lens will not cover everything, but I'm looking for the "it stays on my camera most of the time" lens....and one that will produce good image quality.
Anybody want to throw their opinions at me so I can get more confused?