Sorry - he was making a (rather good) joke, describing
the lens in ways used for increasing car performance...;-)

On Fri, 29 Nov 2002 07:06:10 GMT, Woo Chat Ming wrote:
>
>I am sorry I dont' understand what you are saying. Sorry for my poor English.
>What is "bored-out" ? Do you mean there is a very old version of Sigma f1.6 lens
>and they are just manufacture them again ?
>What is "boosts the torque to f16" ?
>What is "header and an airbox " ? Is these photographic equipment ?
>Thx.
>Ming.

>> The 1.8 EX is just a bored-out version of the 1.6. This boosts the torque
>> to f16 at 1/250. With a set of headers and an airbox, you should be good
>> for ISO1600 without any problem.
>> Hope this helps.
>> James