>Say these are correct. How do Canon & Nikon deal with it? Do they have >more effective solution?
>Alan Chan 1) Throw more ED and other special glass at it, upping the price of the lens. 2) Optimize to limit CA at the expense of other optical flaws. 3) Supposedly the 14/2.8 Nikkor has problems on the D1X, which could mean that they DON'T have the CA tamed. Nikon has apparently been good at reducing CA in its designs in recent years, possibly because pros complain about it, or possibly because Nikon starting discovering that digital doesn't like CA really early. The 17-35 is apparently a LOT better in this respect than the 20-35 that it replaced. OTOH Nikon designs are not known for their bokeh, low price, or small size. I've got a $500 used Sigma 14/3.5 because I couldn't scrape together $1300 for a new Nikkor 14/2.8. Based on what I get, and what my co-worker who had $1300 to spend gets, it's worth the extra money. DJE
