wrote in message
...
In message ,
Alan Browne wrote:

If you sort by quality (across all shooting conditions) you end up
sorting roughly by price at the same time.

... for a given focal length, or range (as in a zoom). A $70 50mm lens
can be optically superior to an L-grade wide-angle zoom.

There are always exceptions.

http://etischer.com/300d/Tamron28-75.html

It looks to me that the Tamron at f/4.0 at the ends and f/5.6 in the middle
is about as good as lenses get. (Although it's a pity his 70-200/4.0
misfocused.) It's not coincidental that my Tamron has produced the sharpest
images I've seen from the 300D.)

David J. Littleboy
Tokyo, Japan