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[OM] Re: Shutter speed requirements [was: 3x21 tele converter]

Subject: [OM] Re: Shutter speed requirements [was: 3x21 tele converter]
From: Moose <olymoose@xxxxxxxxx>
Date: Wed, 28 Feb 2007 02:19:57 -0800
Jan Steinman wrote:
>> From: Dan Mitchell <danmitchell@xxxxxxxx>
>>
>> Moose wrote:
>>     
>>> [1/lens-length rule of thumb]
>>>
>>> Third, the rule of thumb assumes an unmoving subject, which is not  
>>> true
>>> of most critters. And even if you shoot a wooden decoy at the top  
>>> of a
>>> tall tree, the tree is always moving, more or less, depending on  
>>> weather
>>> conditions.
>>>       
>>   I'm not sure I follow this step. Sure, static subjects are easier to
>> shoot then moving ones, but how does one factor lens length come  
>> into it?
>>     
>
> I agree, Dan. Subject motion relative to the frame is the key metric.
>
> The only reason "1/f" works at all is because frame-relative subject  
> motion is less *from the same spot* for a wide angle lens than it is  
> for a telephoto.
>   
What Jan said.
> If you have a tele on an ideal tripod, 1/f is irrelevant, no?
>   
Si

Where do I get an ideal tripod?

Moose

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