> > But now you are not comparing two identical lenses anymore. The claim > was that by improving some firmware in a lens THIS very lens can become > faster.
Alright, I think we might be talking about the same thing, but saying it differently. My original statement was intended to point out lens performance (including maximum aperture, type of AF motor, and firmware), is also a variable in the AF performance big picture above and beyond just the camera body. It's fair to assume Canon would not artificially reduce AF performance by intentionally loading firmware that does not optimize the capability of a particular lens in their line up. Then again, can we assume that no improvement is ever possible with a firmware upgrade for a particular lens design ? It's also likely fair to assume that since Canon may not be able to predicate how well their future lens may perform, that pertinent information to optimize the AF performance would be contained in the firmware in the lens, such that it can be transferred to the camera to be taken advantage of. As I said before, these are speculation on my part. Regards, Ken * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
