Mishka,

Magnification in macro work means the ratio of the size of the  
subject to the size of the format. 1:1 on a Pentax DSLR images a  
16x24mm area.

G

On Mar 14, 2007, at 7:39 PM, Mishka wrote:

> magnification on a digital sensor is a moot point anyway.
> how do you measure it?
> suppose you have 24x36mm (FF) sensors: one is 2x2 pixels
> and one is 20MP. does it make any sense to compare 1:1 mag
> images made on them?
>
> best,
> mishka
>
> On 3/14/07, John Whittingham <[EMAIL PROTECTED]> wrote:
>>
>> But you still have to be at the same distance to achieve 1:1 or  
>> 1:2 as the
>> case may be, fact! Again depends on the subject matter and whether  
>> you
>> require a particular ratio for scientific or technical reasons.


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