Johnpartridge said:
Hi everyone, thanks for the reply's so far.
I am still left unsure, as no one has really answered my initial question, would it be worth me buying the 24-85mm USM ? to replace my 28-80mm??
I'm asking because ive seen one near me which i could purchase 2nd Hand.
John Partridge
It's very subjective. L lenses are definitely better, but a lot depends on your expectations and how you feel about your existing lens.
Keep in mind we don't really know for sure which lens you have. Canon has made various 28-80 lenses. Some are the crap throw-ins that come with film Rebels, etc. There is also at least one pretty good 28-80 with USM. These various lenses are often differentiated by their max aperture ratings. These 2 pages have some more info-
http://photonotes.org/reviews/ef-lenses/
http://emedia.leeward.hawaii.edu/frary/toolbox2.htm
For example, the EF 28-80 3.5-5.6 USM isn’t a bad lens. It has a metal lens mount, similar build quality to the EF 28-105 and fits into the second of the six tiers listed above. However, the EF 28-80 3.5-5.6 II USM is an all-plastic cheapie which fits into the first of the six tiers above. (all 28-80 3.5-5.6 lenses from marks II through V are plastic cheapies, in fact) The EF 50mm 1.8, as noted below, is generally considered to be a better lens than the EF 50mm 1.8 II.
Also, keep in mind most lenses are reasonably sharp at f10 or so. You're going to see the most difference at the lower apertures (maybe that's where you mostly shoot, maybe not.)
Also, a cheap prime is a great way to check out better optics. The Canon 50mm f1.8 is $70, and is sharper than any zoom lens this side of $400 to $500.
All that being said, if you can get that L lens at a great price, go for it!
If you can first take some sample pics with your 10D then that is highly recommended (good way to make sure it's working good)
PS- I own a Canon 28-105 3.5-4.5 USM and am very happy with it. It is a good mid-range lens (around $250), and has that great ring USM focusing. I'd get an L if I could afford it, but given my price range and expectations I am very content.