by "John S. Perilloux" <jperilloux@[EMAIL PROTECTED]
>
Apr 30, 2007 at 12:19 AM
I believe the factor is 1.6, which would be 128-384.
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"Fred Anonymous" <anon@[EMAIL PROTECTED]
> wrote in message
news:dtl63f$huf$1$8300dec7@[EMAIL PROTECTED]
> "ifan" <ifan@[EMAIL PROTECTED]
> wrote in message
> news:1140655015.934347.94060@[EMAIL PROTECTED]
>> I recently bought a used Canon EOS IX and want to buy some additional
>> telephoto lenses. Does anyone know if all of the Canon EF series of
>> lenses will work with the EOS IX? If not, which ones will?
>>
> As far as I am aware, the IX is a pefectly standard EOS mount and will
> accept any EOS lens.
> Bear in mind that the APS format is smaller than the 35mm format and
this
> results in your EOS lenses having an apparent focal length approximately
> (I
> think) 25% more than when the lens is on a 35mm body.
> For example, an 80-240mm lens on an APS camera seems the same as a
> 100-300mm
> on a 35mm body.
>
> If you use Sigma lenses then you may find that some modes on the camera
do
> not work with the lens. This (if you do not already know) is due to the
> way
> that Sigma implement the EOS system in their lenses.
>
> Regards, Ian.
>
> ps. Nice to see a posting to the APS newsgroup!
>
>
>