Am in process of buying Tokina 12-24 and was wondering about
whether to follow up by trading my 18-70 Nikon kit lens for the
nikon 28-105? Is there any significant quality difference between
the two nikons or am I just trading focal length range and AF speed?
I have both lenses, and my 28-105 has better edge sharpness than my
18-70. I haven't used many samples of either lens, so I don't know
if this is generally true or only true of the two lenses I have.
The 28-105 doesn't vignette at the wide end, which the 18-70 does.
I use the macro feature (I'm sure not everyone will). I don't find
the slightly slower focusing speed to be any big deal. I use teles
more than wides, so I like the extra reach at the long end.
Where the 18-70 wins out is simply that it goes as wide as 18. 28
is not terribly wide on a 1.5x body (it's barely shorter than
"normal"). What this really comes down to, IMO, is which you need
more: 18 at the wide end or 105 at the long end.
--
Daniel Bell