EOS 20D and Drebel kit lens confusion

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Mike - 06 Jan 2005 18:05 GMT

Hi,

Just wondering--

Anyone know why some of the kit lenses (18-55mm) that come with these
two cameras are shown as "USM" (ultrasonic focusing motor) and some are
not??

Is one more desirable than the other? Should this be taken into account
when looking to purchase either of these two cameras?

Thanks!

M.

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Matthew Spivey - 06 Jan 2005 18:57 GMT

I think the USM are newer models, if your from the uk Jessops don't take non
USM canon lenses in part exchange.

> Hi,
>
[quoted text clipped - 10 lines]
>
> M.

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Israel Rodriguez - 06 Jan 2005 19:11 GMT

>> Hi,
>>
[quoted text clipped - 13 lines]
>non
> USM canon lenses in part exchange.

Actually the USM lenses use a silent focusing motor while with regulars
lens, you can hear the motor as you focus.

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Israel Rodriguez

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Colm - 07 Jan 2005 10:36 GMT

> Anyone know why some of the kit lenses (18-55mm) that come with these
> two cameras are shown as "USM" (ultrasonic focusing motor) and some are
> not??
>
> Is one more desirable than the other? Should this be taken into account
> when looking to purchase either of these two cameras?

USM lenses are quiet when focusing. Non USM are noisier. That's it in a
nutshell

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Colm

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