If you need it yes, it is worth it. If you don't well that's another
question.
Nenad Djurdjevic wrote:
alex wetmore wrote:
Compact size and weight are more important to me than lens speed,
especially since the *ist D is pretty noise free up to ISO 800 and
still very usable at ISO 1600.
Quite right: Does one stop faster really make it worth paying 10 times more
money and putting up with 4 times the weight? For example the difference
between the FA28-70f4 and the FA28-70f2.8 is only one stop (the difference
between setting the ISO from 200 to 400 on the *istD) and the difference
optically is apparently minimal (3.3 and 3.5 according to www.photodo.com)
