Ummm. I forgot about the optional extras. :-)
Chuck Norcutt
Moose wrote:
> On 5/5/2010 7:33 PM, Chuck Norcutt wrote:
>> I really have no idea but would suggest that it's possible the Big
>> Foot reduces its focal length when focusing at macro ranges such
>> that the f/2.5 aperture at 125mm might be, say, f/2 at 100mm.
>>
>
> Unless it has an internal Photon Flux Multiplier.
>
> A. Quantum Moose
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