Regarding the pseudo-zoom Macros, William Robb wrote ( edited ) :
> there is absolutely nothing wrong with >the lens design. > I am sorry but that couldn't be more wrong. There is something "wrong" with every lens ever made, none of them are perfect. The optical designers have to make lots of compromises in nearly every parameter and to say that the pseudo-zoom macros have "absolutely nothing wrong" with them is going a little to far IMHO. Adding all those extra elements to achieve wider focus range is going to improve some parameters most notably infinity performance at wider apertures but at the same time degrade others like contrast and flare and quality control. It is a choice the designers and marketing dept felt was worthwhile or more valuable to the customer or they would not have done it. JCO
