on 1/4/01 5:50 PM, Michael Wood at [EMAIL PROTECTED] wrote:
> At 05:30 PM 1/4/2001 -0500, you wrote:
>> Specifications for the EF 100mm f/2.8 USM Macro lens list a "Distance
>> Limiter Switch" that , I assume, allows the user to select between the
>> available options of 0.31m ~ Infinity; and 0.48m ~ Infinity.
>>
>> What is the purpose of this switch? What is the advantage of allowing the
>> user this flexibility?
>
> Faster focusing within the range. If you are not shooting real close,
> setting the limiter switch to 0.48m-infinity allows the camera to autofocus
> a little faster.
>
> --Mike
>
If this lens allows you to select between the two options listed above, how
do you focus all the way down to the minimum specified working distance of
5.9 inches in that .31m equals 12.204731 inches? Can you turn the distance
limiter off?
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