I beg to differ. It very greatly affects angular velocity across the
image plane... in other words, subject motion from the camera's perspective.
Chuck Norcutt
Jez Cunningham wrote:
> Focal length doesn't affect subject movement...
> Jez
>
>
> On Tue, Jul 29, 2008 at 2:36 PM, Chuck Norcutt <
> chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>
>> Yes, I'm sure you're correct but see my previous post about normal
>> walking speed.
>>
>> Chuck Norcutt
>>
>> Jez Cunningham wrote:
>>> Wait a minute - that's to avoid camera shake, not subject movement
>> n'est-ce
>>> pas?
>>> jez
>>>
>>> On Tue, Jul 29, 2008 at 1:42 AM, Chuck Norcutt <
>>> chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>>>
>>>> Check the right foot on <http://www.pbase.com/afildes/image/100880683>
>>>> It's proof that the old 35mm rule of thumb about minimum shutter speed
>>>> being 1/focal length doesn't work for sub-35mm formats.
>>>>
>>>> Chuck Norcutt
>>>>
>
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